Update llvm/docs/CodingStandards.rst

Co-authored-by: Angel Cascarino <[email protected]>

Author: joker-eph

llvm/docs/CodingStandards.rst

@@ -78,7 +78,7 @@ Each toolchain provides a good reference for what it accepts:
 Additionally, there are compiler comparison tables of supported C++ features on
 `cppreference.com <https://en.cppreference.com/w/cpp/compiler_support/17>`_.
 
-To keep track with the evolution of the standard, newer C++ version can be used
+To keep track with the evolution of the standard, newer C++ versions can be used
 to build LLVM. However, our support focuses on the minimum supported C++
 version and a very recent standard may not yet be supported, or only using the
 latest version of the supported toolchains and possibly not across all the