Add explanation why we ignore typing in api.py.

hcl2/api.py

@@ -15,4 +15,7 @@ def loads(text: str) -> dict:
     # Lark doesn't support a EOF token so our grammar can't look for "new line or end of file"
     # This means that all blocks must end in a new line even if the file ends
     # Append a new line as a temporary fix
+    # Ignoring type as the type-annotation of Lark.parse() claims that it always returns a Tree,
+    # but in the docs of the parse() said that it returns whatever the supplied transformer returns.
+    # We supply DictTransformer so the return type is Dict.
     return hcl2.parse(text + "\n")  # type: ignore