remove broken link etc. (#234)

[ROCm/rocshmem commit: 4a760d7]

Author: yugang-amd

projects/rocshmem/docs/index.rst

@@ -6,7 +6,7 @@
 rocSHMEM documentation
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-The ROCm OpenSHMEM (rocSHMEM) is an intra-kernel networking library that provides GPU-centric networking through an `OpenSHMEM-like <http://www.openshmem.org/site/>`_ interface. It simplifies application code complexity and enables finer communication and computation overlap than traditional host-driven networking. rocSHMEM uses a single symmetric heap (SHEAP) allocated to GPU memories. For more information, see :doc:`introduction`
+The ROCm OpenSHMEM (rocSHMEM) is an intra-kernel networking library that provides GPU-centric networking through an OpenSHMEM-like interface. It simplifies application code complexity and enables finer communication and computation overlap than traditional host-driven networking. rocSHMEM uses a single symmetric heap allocated to GPU memories. For more information, see :doc:`introduction`.
 
 The rocSHMEM public repository is located at `<https://github.com/ROCm/rocSHMEM>`_.