fixup! WIP: posts: add mutiple-dispatch-in-c++

content/posts/2022-06-07-multiple-dispatch-in-c++/index.md

@@ -105,7 +105,7 @@ You can then write `PosixFilesystem` which makes use of the POSIX API and
 interact with actual on-disk data, `MockFilesystem` which only works in-memory
 and can be used for testing, etc...
 
-## Double dispatch
+## Double dispatch through the Visitor pattern
 
 Sometimes single dispatch is not enough, such as in the collision example at
 the beginning of this article. In cases where a computation depends on the