Update api links per context (#42033)

This manually updates the API links contained in each context doc to correctly 
point to both the shared API and specialized API if available. This is a 
temporary fix until full automation is completed for generating context 
documentation.

docs/painless/painless-contexts/painless-analysis-predicate-context.asciidoc

@@ -40,4 +40,4 @@ analysis chain matches a predicate.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-bucket-script-agg-context.asciidoc

@@ -18,7 +18,7 @@ numeric::
 
 ==== API
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 ==== Example
 

docs/painless/painless-contexts/painless-bucket-selector-agg-context.asciidoc

@@ -19,6 +19,10 @@ boolean::
 
 ==== API
 
+The standard <<painless-api-reference-shared, Painless API>> is available.
+
+==== Example
+
 
 To run this example, first follow the steps in <<painless-context-examples, context examples>>.
 

docs/painless/painless-contexts/painless-field-context.asciidoc

@@ -25,7 +25,8 @@ a customized value for each document in the results of a query.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+Both the standard <<painless-api-reference-shared, Painless API>> and
+<<painless-api-reference-field, Specialized Field API>> are available.
 
 
 *Example*

docs/painless/painless-contexts/painless-filter-context.asciidoc

@@ -23,7 +23,7 @@ query to include and exclude documents.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-ingest-processor-context.asciidoc

@@ -38,7 +38,8 @@ void::
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+Both the standard <<painless-api-reference-shared, Painless API>> and
+<<painless-api-reference-ingest, Specialized Ingest API>> are available.
 
 *Example*
 

docs/painless/painless-contexts/painless-metric-agg-combine-context.asciidoc

@@ -24,4 +24,4 @@ optional as part of a full metric aggregation.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-metric-agg-init-context.asciidoc

@@ -29,4 +29,4 @@ full metric aggregation.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-metric-agg-map-context.asciidoc

@@ -44,4 +44,4 @@ part of a full metric aggregation.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-metric-agg-reduce-context.asciidoc

@@ -25,4 +25,4 @@ specified) and is optional as part of a full metric aggregation.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-min-should-match-context.asciidoc

@@ -25,7 +25,7 @@ results.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-reindex-context.asciidoc

@@ -65,4 +65,4 @@ reindexed into a target index.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-score-context.asciidoc

@@ -26,7 +26,8 @@ score to documents returned from a query.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+Both the standard <<painless-api-reference-shared, Painless API>> and
+<<painless-api-reference-score, Specialized Score API>> are available.
 
 *Example*
 

docs/painless/painless-contexts/painless-similarity-context.asciidoc

@@ -56,4 +56,4 @@ uses synonyms.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.

docs/painless/painless-contexts/painless-sort-context.asciidoc

@@ -25,7 +25,7 @@ Use a Painless script to
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-update-by-query-context.asciidoc

@@ -51,7 +51,7 @@ result of query.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-update-context.asciidoc

@@ -52,7 +52,7 @@ add, modify, or delete fields within a single document.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-watcher-condition-context.asciidoc

@@ -14,7 +14,7 @@ include::painless-watcher-context-variables.asciidoc[]
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-watcher-context-variables.asciidoc

@@ -33,8 +33,7 @@ The following variables are available in all watcher contexts.
 
 *API*
 
-
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 To run this example, first follow the steps in
 <<painless-context-examples, context examples>>.

docs/painless/painless-contexts/painless-watcher-transform-context.asciidoc

@@ -14,7 +14,7 @@ include::painless-watcher-context-variables.asciidoc[]
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.
 
 *Example*
 

docs/painless/painless-contexts/painless-weight-context.asciidoc

@@ -39,4 +39,4 @@ Queries that contain multiple terms calculate a separate weight for each term.
 
 *API*
 
-The standard <<painless-api-reference, Painless API>> is available.
+The standard <<painless-api-reference-shared, Painless API>> is available.