Updated CHANGELOG

Author: tleonhardt

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 0.9.23 (TBD, 2019)
 * Bug Fixes
     * Fixed bug where startup script containing a single quote in its file name was incorrectly quoted
+    * Added missing implicit dependency on `setuptools` due to build with `setuptools_scm`
 
 ## 0.9.22 (December 9, 2019)
 * Bug Fixes

CONTRIBUTING.md

@@ -51,6 +51,7 @@ The tables below list all prerequisites along with the minimum required version
 | [attrs](https://github.com/python-attrs/attrs)      | `16.3`          |
 | [colorama](https://github.com/tartley/colorama)     | `0.3.7`         |
 | [pyperclip](https://github.com/asweigart/pyperclip) | `1.6`           |
+| [setuptools](https://pypi.org/project/setuptools/)  | `34.4`          |
 | [wcwidth](https://pypi.python.org/pypi/wcwidth)     | `0.1.7`         |