Update docs (#5310)

Author: stevejgordon

docs/aggregations/metric/geo-line/geo-line-aggregation-usage.asciidoc

@@ -1,4 +1,4 @@
-:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/7.11
+:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/master
 
 :github: https://github.com/elastic/elasticsearch-net
 
@@ -7,7 +7,7 @@
 ////
 IMPORTANT NOTE
 ==============
-This file has been generated from https://github.com/elastic/elasticsearch-net/tree/7.x/src/Tests/Tests/Aggregations/Metric/GeoLine/GeoLineAggregationUsageTests.cs. 
+This file has been generated from https://github.com/elastic/elasticsearch-net/tree/master/src/Tests/Tests/Aggregations/Metric/GeoLine/GeoLineAggregationUsageTests.cs. 
 If you wish to submit a PR for any spelling mistakes, typos or grammatical errors for this file,
 please modify the original csharp file found at the link and submit the PR with that change. Thanks!
 ////

docs/aggregations/metric/rate/rate-aggregation-usage.asciidoc

@@ -1,4 +1,4 @@
-:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/7.11
+:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/master
 
 :github: https://github.com/elastic/elasticsearch-net
 
@@ -7,7 +7,7 @@
 ////
 IMPORTANT NOTE
 ==============
-This file has been generated from https://github.com/elastic/elasticsearch-net/tree/7.x/src/Tests/Tests/Aggregations/Metric/Rate/RateAggregationUsageTests.cs. 
+This file has been generated from https://github.com/elastic/elasticsearch-net/tree/master/src/Tests/Tests/Aggregations/Metric/Rate/RateAggregationUsageTests.cs. 
 If you wish to submit a PR for any spelling mistakes, typos or grammatical errors for this file,
 please modify the original csharp file found at the link and submit the PR with that change. Thanks!
 ////

docs/client-concepts/high-level/mapping/fluent-mapping.asciidoc

@@ -414,7 +414,7 @@ var createIndexResponse = _client.Indices.Create("myindex", c => c
 }
 ----
 
-It's not necessary to define a type for the runtime field mapping. Runtime fields can optionally be defined
+It's not necessary to define a type for the runtime field mapping. Runtime fields can optionally be defined 
 by providing a `string` name.
 
 [source,csharp]

docs/high-level.asciidoc

@@ -211,8 +211,6 @@ include::search/scrolling-documents.asciidoc[]
 
 include::{output-dir}/covariant-hits/covariant-search-results.asciidoc[]
 
-include::search/searching-runtime-fields.asciidoc[]
-
 [[aggregations]]
 == Aggregations
 

docs/search/searching-runtime-fields.asciidoc

@@ -1,4 +1,4 @@
-:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/7.11
+:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/master
 
 :github: https://github.com/elastic/elasticsearch-net
 
@@ -7,7 +7,7 @@
 ////
 IMPORTANT NOTE
 ==============
-This file has been generated from https://github.com/elastic/elasticsearch-net/tree/7.x/src/Tests/Tests/Search/SearchingRuntimeFields.doc.cs. 
+This file has been generated from https://github.com/elastic/elasticsearch-net/tree/master/src/Tests/Tests/Search/SearchingRuntimeFields.doc.cs. 
 If you wish to submit a PR for any spelling mistakes, typos or grammatical errors for this file,
 please modify the original csharp file found at the link and submit the PR with that change. Thanks!
 ////