Address formatting suggestion in checker doc.

Co-authored-by: EugeneZelenko <[email protected]>

Author: pizzud

clang-tools-extra/docs/clang-tidy/checks/bugprone/move-shared-pointer-contents.rst

@@ -19,4 +19,4 @@ Options
    A semicolon-separated list of class names that should be treated as
    shared pointers. Classes are resolved through aliases, so any alias
    to the defined classes will be considered. Default is
-   `::std::shared_ptr` and `::boost::shared_pointer`.
+   `::std::shared_ptr;::boost::shared_pointer`.