Update spring server overview page (ExpediaGroup#539)

* Update spring server overview page

Add some images and more details, copying information from https://medium.com/expedia-group-tech/creating-a-reactive-graphql-server-with-spring-boot-and-kotlin-54aca7316470

* Add dropping of spring webmvc

* Update docs/spring-server/spring-overview.md

Co-Authored-By: Dariusz Kuc <[email protected]>

Co-authored-by: Dariusz Kuc <[email protected]>

Author: smyrick

docs/assets/spring-initializer.png

@@ -8,15 +8,19 @@ Here are some links to other blog posts and videos which may provide further exa
 ### From the Expedia Group team
 
 #### graphql-kotlin
+Articles and videos specifically about `graphql-kotlin`
+
 * 📝 [graphql-kotlin: Generate a GraphQL schema from Kotlin code](https://medium.com/expedia-group-tech/graphql-kotlin-generate-a-graphql-schema-from-kotlin-code-21d1dc2f6e27)
 * 📝 [Release of graphql-kotlin 1.0.0!](https://medium.com/expedia-group-tech/release-of-graphql-kotlin-1-0-0-791ad85d3116)
 * 📝 [Creating GraphQL Schemas in Kotlin](https://medium.com/expedia-group-tech/creating-graphql-schemas-in-kotlin-aaaac0ab0672)
-* 📝[Apollo Federation in a GraphQL Kotlin Server](https://medium.com/expedia-group-tech/apollo-federation-in-a-graphql-kotlin-server-115cea51607a)
-* 📝[Creating a Reactive GraphQL Server with Spring Boot and Kotlin](https://medium.com/expedia-group-tech/creating-a-reactive-graphql-server-with-spring-boot-and-kotlin-54aca7316470)
+* 📝 [Apollo Federation in a GraphQL Kotlin Server](https://medium.com/expedia-group-tech/apollo-federation-in-a-graphql-kotlin-server-115cea51607a)
+* 📝 [Creating a Reactive GraphQL Server with Spring Boot and Kotlin](https://medium.com/expedia-group-tech/creating-a-reactive-graphql-server-with-spring-boot-and-kotlin-54aca7316470)
+* 📺 [Bootiful GraphQL with Kotlin (Dariusz Kuc, Guillaume Scheibel)](https://www.youtube.com/watch?v=7YJyPXjLdug&index=25) (en)
 
 #### GraphQL
+Articles and videos about how Expedia Group is using GraphQL
+
 * 📺 [Creating a federated schema for a global company (Shane Myrick)](https://youtu.be/MuD3TAP0D9Y) (en)
 * 📺 [Migrer ses APIs vers GraphQL: pourquoi? comment! (Guillaume Scheibel)](https://youtu.be/IRIkpvJo95s) (fr)
 * 📺 [Migrate your APIs to GraphQL: how? and why! (Guillaume Scheibel)](https://youtu.be/IkPMpzQ-TRI) (en)
 * 📺 [Transforming customer experiences and your organization with GraphQL (Jim Gust, Dan Boerner)](https://youtu.be/Jt-ZD4zj4Ow) (en)
-* 📺 [Bootiful GraphQL with Kotlin (Dariusz Kuc, Guillaume Scheibel)](https://www.youtube.com/watch?v=7YJyPXjLdug&index=25) (en)

docs/blogs-and-videos.md

@@ -1,24 +1,24 @@
----
-id: examples
-title: Examples
----
-
-## Spring Example
-
-One way to run a GraphQL server is with [Spring Boot](https://github.com/spring-projects/spring-boot). A sample Spring
-Boot app that uses [Spring
-Webflux](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html) together with
-`graphql-kotlin-schema-generator` and [graphql-playground](https://github.com/prisma/graphql-playground) is provided as
-a [examples/spring](https://github.com/ExpediaGroup/graphql-kotlin/tree/master/examples/spring). All the examples used
-in this documentation should be available in the sample app.
-
-In order to run it you can run
-[Application.kt](https://github.com/ExpediaGroup/graphql-kotlin/blob/master/examples/spring/src/main/kotlin/com/expediagroup/graphql/examples/Application.kt)
-directly from your IDE. Alternatively you can also use the Spring Boot maven plugin by running `mvn spring-boot:run`
-from the command line. Once the app has started you can explore the example schema by opening Playground endpoint at
-[http://localhost:8080/playground](http://localhost:8080/playground).
-
-## Federation Example
-
-There is also an example of [Apollo Federation](https://www.apollographql.com/docs/apollo-server/federation/introduction/)  with two Spring Boot apps using `graphql-kotlin-federation` and an Apollo Gateway app in Nodejs that exposes a single federated schema in [examples/federation](https://github.com/ExpediaGroup/graphql-kotlin/tree/master/examples/federation)
-project. Please refer to the README files for details on how to run each application.
+---
+id: examples
+title: Examples
+---
+
+## Spring Server Example
+
+One way to run a GraphQL server is with [Spring Boot](https://github.com/spring-projects/spring-boot). A sample Spring
+Boot app that uses [Spring
+Webflux](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html) together with
+`graphql-kotlin-schema-generator` and [graphql-playground](https://github.com/prisma/graphql-playground) is provided as
+a [examples/spring](https://github.com/ExpediaGroup/graphql-kotlin/tree/master/examples/spring). All the examples used
+in this documentation should be available in the sample app.
+
+In order to run it you can run
+[Application.kt](https://github.com/ExpediaGroup/graphql-kotlin/blob/master/examples/spring/src/main/kotlin/com/expediagroup/graphql/examples/Application.kt)
+directly from your IDE. Alternatively you can also use the Spring Boot maven plugin by running `mvn spring-boot:run`
+from the command line. Once the app has started you can explore the example schema by opening Playground endpoint at
+[http://localhost:8080/playground](http://localhost:8080/playground).
+
+## Federation Example
+
+There is also an example of [Apollo Federation](https://www.apollographql.com/docs/apollo-server/federation/introduction/) with two Spring Boot apps using `graphql-kotlin-federation` and an Apollo Gateway app in Nodejs that exposes a single federated schema in [examples/federation](https://github.com/ExpediaGroup/graphql-kotlin/tree/master/examples/federation)
+project. Please refer to the README files for details on how to run each application.

docs/examples.md

@@ -1,5 +1,5 @@
 ---
-id: getting-started 
+id: getting-started
 title: Getting Started
 ---
 
@@ -79,7 +79,7 @@ The `GraphQLSchema` generated can be used to expose a GraphQL API endpoint.
 This function accepts four arguments: `config`, `queries`, `mutations` and `subscriptions`. The `queries`, `mutations`
 and `subscriptions` are a list of `TopLevelObject`s and will be used to generate corresponding GraphQL root types. See
 below on why we use this wrapper class. The `config` contains all the extra information you need to pass, including
-custom hooks, supported packages, and name overrides. See the full documentation: [Spring Server Overview](server/spring-overview).
+custom hooks, supported packages, and name overrides. See the full documentation: [Spring Server Overview](spring-server/spring-overview).
 
 You can see the definition for `toSchema` [in the
 source](https://github.com/ExpediaGroup/graphql-kotlin/blob/master/graphql-kotlin-schema-generator/src/main/kotlin/com/expediagroup/graphql/toSchema.kt)

docs/getting-started.md

@@ -7,6 +7,36 @@ title: Spring Server Overview
 is a Spring Boot auto-configuration library that automatically configures beans required to start up a reactive GraphQL
 web server.
 
+This library is built on a [Spring WebFlux (reactive)](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html) stack which is a non-blocking alternative to a traditional [Spring Web MVC (servlet)](https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html) based stack. Since both frameworks utilize different threading models they cannot and should not be intermixed. When building a GraphQL server using `graphql-kotlin-spring-server` all your queries and mutations should follow one of the supported [asynchronous execution models](https://expediagroup.github.io/graphql-kotlin/docs/execution/async-models). 
+
+## Setup
+
+### Creating a Spring Server
+
+The simplest way to create a new Kotlin Spring Boot app is by generating one using [Spring Initializr.](https://start.spring.io/)
+
+![Image of https://start.spring.io/](assets/spring-initializer.png)
+
+Once you get the sample application setup locally, you will need to add `graphql-kotlin-spring-server` dependency:
+
+With Maven:
+
+```xml
+<dependency>
+  <groupId>com.expediagroup</groupId>
+  <artifactId>graphql-kotlin-spring-server</artifactId>
+  <version>${latestVersion}</version>
+</dependency>
+```
+
+With Gradle:
+
+```groovy
+compile(group: 'com.expediagroup', name: 'graphql-kotlin-spring-server', version: "$latestVersion")
+```
+
+### Configuration
+
 At a minimum, in order for `graphql-kotlin-spring-server` to automatically configure your GraphQL web server you need to
 specify a list of supported packages that can be scanned for exposing your schema objects through reflections.
 
@@ -18,7 +48,7 @@ graphql:
     - "com.your.package"
 ```
 
-
+### Writing Schema Code
 In order to expose your queries, mutations and/or subscriptions in the GraphQL schema you simply need to implement
 corresponding marker interface and they will be automatically picked up by `graphql-kotlin-spring-server`
 auto-configuration library.
@@ -69,6 +99,8 @@ type Widget {
 }
 ```
 
+### Default Routes
+
 Your newly created GraphQL server starts up with following preconfigured default routes:
 
 * **/graphql** - GraphQL server endpoint used for processing queries and mutations

docs/server/spring-beans.md renamed to docs/spring-server/spring-beans.md

@@ -51,11 +51,11 @@
       "federated/type-resolution"
     ],
     "Spring Server": [
-      "server/spring-overview",
-      "server/spring-beans",
-      "server/spring-properties",
-      "server/spring-graphql-context",
-      "server/subscriptions"
+      "spring-server/spring-overview",
+      "spring-server/spring-beans",
+      "spring-server/spring-properties",
+      "spring-server/spring-graphql-context",
+      "spring-server/subscriptions"
     ],
     "Contributors": [
       "contributors/release-proc"