Merge pull request OpenDDS#4600 from OpenDDS/igtd/cmake-readme

Update Link in cmake/README.md

cmake/README.md

@@ -1,3 +1,3 @@
 # Config Package for CMake Integration
 
-Please take a look at the [documentation](../docs/cmake.md) for further details.
+Please take a look at the [CMake documentation](https://opendds.readthedocs.io/en/latest-release/devguide/building/cmake.html) for further details.