Fix link - attempt 1

Author: kiranchandramohan

flang/docs/OpenMPSupport.md

@@ -17,7 +17,7 @@ local:
 This document outlines the OpenMP API features supported by Flang. It is intended as a general reference.
 For the most accurate information on unimplemented features, rely on the compiler’s TODO or “Not Yet Implemented”
 messages, which are considered authoritative.  With the exception of a few corner cases, Flang
-offers full support for OpenMP 3.1 ([See details here](#OpenMP 3.1, OpenMP 2.5, OpenMP 1.1)).
+offers full support for OpenMP 3.1 ([See details here](#openmp-31-openmp-25-openmp-11)).
 Partial support for OpenMP 4.0 is also available and currently under active development. The table below outlines the current status of OpenMP 4.0 feature support.
 The table below details the current support for OpenMP 4.0 features. Work is ongoing to add support
 for OpenMP 4.5 and newer versions; an official support statement for these will be shared in the future.