Update 7.x documentation (#5248)

Author: stevejgordon

docs/aggregations/bucket/auto-date-histogram/auto-date-histogram-aggregation-usage.asciidoc

@@ -76,7 +76,7 @@ new AutoDateHistogramAggregation("projects_started_per_month")
     "auto_date_histogram": {
       "field": "startedOn",
       "buckets": 10,
-      "format": "yyyy-MM-dd'T'HH:mm:ss||date_optional_time",
+      "format": "yyyy-MM-dd'T'HH:mm:ss||date_optional_time", <1>
       "missing": "2015-06-06T12:01:02.123"
     },
     "aggs": {
@@ -96,6 +96,7 @@ new AutoDateHistogramAggregation("projects_started_per_month")
   }
 }
 ----
+<1> Note the inclusion of `date_optional_time` to `format`
 
 ==== Handling responses
 

docs/aggregations/bucket/date-histogram/date-histogram-aggregation-usage.asciidoc

@@ -86,7 +86,7 @@ new DateHistogramAggregation("projects_started_per_month")
       "field": "startedOn",
       "calendar_interval": "month",
       "min_doc_count": 2,
-      "format": "yyyy-MM-dd'T'HH:mm:ss||date_optional_time",
+      "format": "yyyy-MM-dd'T'HH:mm:ss||date_optional_time", <1>
       "order": {
         "_count": "asc"
       },
@@ -113,6 +113,7 @@ new DateHistogramAggregation("projects_started_per_month")
   }
 }
 ----
+<1> Note the inclusion of `date_optional_time` to `format`
 
 ==== Handling responses
 

docs/search/request/point-in-time-usage.asciidoc

@@ -1,4 +1,4 @@
-:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/master
+:ref_current: https://www.elastic.co/guide/en/elasticsearch/reference/7.x
 
 :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/master/src/Tests/Tests/Search/Request/PointInTimeUsageTests.cs. 
+This file has been generated from https://github.com/elastic/elasticsearch-net/tree/7.x/src/Tests/Tests/Search/Request/PointInTimeUsageTests.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/search/request/script-fields-usage.asciidoc

@@ -92,3 +92,15 @@ new SearchRequest<Project>
 }
 ----
 
+[float]
+=== Handling Responses
+
+[source,csharp]
+----
+foreach (var fields in response.Fields)
+{
+    fields.Value<int>("test1").Should().BeGreaterOrEqualTo(0);
+    fields.Value<double>("test2").Should().BeGreaterOrEqualTo(0);
+}
+----
+