Adding some documentation for Cucumber-Clojure

clojure/README.md

@@ -1,6 +1,77 @@
 # Cucumber-Clojure
 
-This module needs documentation. The only documentation so far is the following examples:
+Cucumber-Clojure is a Cucumber implementation for [Clojure](http://www.clojure.org/).
+
+This document is the reference for features that are specific to Cucumber-Clojure.
+
+Please see the [general reference](https://cucumber.io/docs/reference) for features that are common to all Cucumber implementations.
+
+## Step Definitions
+
+Clojure step definitions are defined by using the provided [macros](http://clojure.org/macros). For example:
+
+```clojure
+(use 'clojure-cukes.core)
+(use 'clojure.test)
+
+(Given #"^I have (\d+) big cukes in my belly$" [cukes]
+       (println cukes))
+```
+
+You can use a [DataTable](https://cucumber.io/docs/reference#data-table) to define a list:
+
+```
+Given I have a table with its keys in a header row:
+  | id | name  | created-at    |
+  | 55 | "foo" | 1293884100000 |
+  | 56 | "bar" | 1293884100000 |
+```
+
+Simply declare the following:
+
+```clojure
+(Given #"^I have a table with its keys in a header row:$" [data]
+  (reset! most-recent (table->rows data)))
+```
+
+In this case, the DataTable is flattened to a vector of hashes
+
+```clojure
+[{:id 55, :name "foo", :created-at 1293884100000}
+{:id 56, :name "bar", :created-at 1293884100000}]
+```
+
+before invoking the step definition.
+
+## Running
+
+There are several ways to run scenarios with Cucumber-Clojure:
+* lein-cucumber
+* JunitRunner
+
+### lein-cucumber
+
+[Leiningen](http://leiningen.org/) uses [clojure.test](TODO) to run Cucumber. All you need is a single entry point:
+
+```clojure
+(ns clojure-cukes.test.core
+  (:use [clojure-cukes.core])
+  (:use [clojure.test]))
+
+(deftest run-cukes
+  (. cucumber.api.cli.Main (main (into-array ["--plugin" "pretty" "--glue" "test/features/step_definitions" "test/features"]))))
+
+```
+
+You then need to add `[lein-cucumber "1.0.2"]` to `:plugins` in your project.clj. This allows you to run all Cucumber features with `lein cucumber`
+
+### JUnitRunner
+
+The instructions for the JUnitRunner can be found [here](https://cucumber.io/docs/reference/jvm#junit-runner)
+
+## Miscellaneous
+
+This module needs further documentation. The following examples show supported features:
 
 * [examples/clojure_cukes](https://github.com/cucumber/cucumber-jvm/tree/master/examples/clojure_cukes)
 * [clojure/src/test/resources/cucumber/runtime/clojure](https://github.com/cucumber/cucumber-jvm/tree/master/clojure/src/test/resources/cucumber/runtime/clojure).