Update docs/TypeChecker.rst

Co-Authored-By: Dan Zheng <[email protected]>

Author: xedin

docs/TypeChecker.rst

@@ -995,7 +995,7 @@ The things in the queue yet to be ported are:
 
 - Problems related to calls and operator applications e.g.
 
-  - ``@dynamicallyCallable`` related diagnostics
+  - ``@dynamicCallable`` related diagnostics
   - Missing explicit ``Self.`` and ``self.``
   - Logic related to overload candidate ranking (``CalleeCandidateInfo``)
   - ``diagnoseParameterErrors``