Add QualGroup to community section in docs index

Author: Wendi Urribarri (Woven by Toyota

llvm/docs/index.rst

@@ -86,6 +86,7 @@ LLVM welcomes contributions of all kinds. To learn more, see the following artic
    :hidden:
 
    GettingInvolved
+   QualGroup
 
 * :doc:`GettingInvolved`
 * :ref:`development-process`
@@ -97,6 +98,9 @@ LLVM welcomes contributions of all kinds. To learn more, see the following artic
 
 * :ref:`report-security-issue`
 
+* :doc:`QualGroup`  
+  LLVM Qualification Group
+
 Indices and tables
 ==================