DOCSP-50753: agg tutorial link

Author: rustagir

source/aggregation.txt

@@ -30,6 +30,15 @@ part of the Query API, is modeled on the concept of data processing
 pipelines. Documents enter a pipeline that contains one or more stages,
 and this pipeline transforms the documents into an aggregated result.
 
+.. sharedinclude:: dbx/agg-tutorials-manual-tip.rst
+
+   .. replacement:: language
+
+      :guilabel:`{+language+}`
+
+Analogy
+~~~~~~~
+
 An aggregation operation is similar to a car factory. A car factory has
 an assembly line, which contains assembly stations with specialized
 tools to do specific jobs, like drills and welders. Raw parts enter the