docs(faq): add features we wont add

Closes #1129

Author: bearomorphism

docs/faq.md

@@ -1,3 +1,9 @@
+## Features we won't add
+
+- Global Configuration [#597](https://github.com/commitizen-tools/commitizen/issues/597)
+- Create a flag to build the changelog from commits in multiple git repositories [#790](https://github.com/commitizen-tools/commitizen/issues/790)
+- Enable multiple locations of config file `.cz.*` [#955](https://github.com/commitizen-tools/commitizen/issues/955)
+
 ## Support for PEP621
 
 PEP621 establishes a `[project]` definition inside `pyproject.toml`