Notifying assume directive as 'worked on'. (llvm#90022)

Notifying assume directive as 'worked on'. When checked on slack
channel, nobody was working on assume directive.

 Changes to be committed:
	modified:   clang/docs/OpenMPSupport.rst

---------

Co-authored-by: Sunil Kuravinakop

Author: SunilKuravinakop

clang/docs/OpenMPSupport.rst

@@ -310,7 +310,9 @@ implementation.
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
 | misc                         | dispatch construct and function variant argument adjustment  | :part:`worked on`        | D99537, D99679                                                        |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
-| misc                         | assume and assumes directives                                | :part:`worked on`        |                                                                       |
+| misc                         | assumes directives                                           | :part:`worked on`        |                                                                       |
++------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
+| misc                         | assume directive                                             | :part:`worked on`        |                                                                       |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
 | misc                         | nothing directive                                            | :good:`done`             | D123286                                                               |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+