DATAMONGO-1245 - Final tweaks to Query by Example documentation.

Tweaked section anchor to match conventions. Use level offsets to accommodate changes in Spring Data Commons.

src/main/asciidoc/reference/mongodb.adoc

@@ -1330,8 +1330,8 @@ TextQuery.searching(new TextCriteria().matching("\"coffee cake\""));
 TextQuery.searching(new TextCriteria().phrase("coffee cake"));
 ----
 
-include::../{spring-data-commons-docs}/query-by-example.adoc[]
+include::../{spring-data-commons-docs}/query-by-example.adoc[leveloffset=+1]
-include::query-by-example.adoc[]
+include::query-by-example.adoc[leveloffset=+1]
 
 
 [[mongo.mapreduce]]

src/main/asciidoc/reference/query-by-example.adoc

@@ -1,5 +1,5 @@
-[[query.by.example.execution]]
+[[query-by-example.execution]]
-=== Executing Example
+== Executing an example
 
 .Query by Example using a Repository
 ====