fix docs

Author: zeyi2

clang-tools-extra/docs/clang-tidy/checks/cert/mem57-cpp.rst

@@ -4,7 +4,7 @@ cert-mem57-cpp
 ==============
 
 The `cert-mem57-cpp` is an aliaes, please see
-`bugprone-default-operator-new-alignment <../bugprone/default-operator-new-alignment>`_
+`bugprone-default-operator-new-alignment <../bugprone/default-operator-new-alignment.html>`_
 for more information.
 
 This check corresponds to the CERT C++ Coding Standard rule