doc: updated information about bootstrap '-x' option

cuprumtan · cuprumtan · commit 0a376bbec40f · 2022-04-18T17:03:44.000+03:00
diff --git a/documentation/tools.md b/documentation/tools.md
@@ -74,7 +74,7 @@ Bootstrap Mamonsu. This command can take the following options:
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Specify a non-privileged user that will own all Mamonsu processes.
 
 **-x/--create-extensions**  
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates additional extensions (currently, pg_buffercache).  
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates additional extensions and functions for collecting metrics using these extensions objects (currently, pg_buffercache and pgpro_stat_statements).  
  >**_NOTE:_**  *pg_buffercache* can sometimes generate overhead compared to the common behavior of other objects. To avoid this you can `SET work_mem` on *database* or *mamonsu user* level, but be careful not to affect other objects performance. 
 
 **-c/--config**  
