Merge pull request #6702 from pierreloicq/patch-2

talking about "ninja qgis"

Author: m-kuhn

doc/linux.t2t

@@ -206,6 +206,11 @@ Build and install with ninja:
 ninja (uses all cores by default; also supports the above described -jX option)
 ninja install
 ```
+You can build just the targets you need using, for example :
+```
+ninja qgis
+ninja pycore
+```
 
 You can build just the targets you need using, for example:
 - ninja qgis