Update contributing guide

Author: mathbunnyru

CONTRIBUTING.md

@@ -1,10 +1,10 @@
-Thanks for contributing! Please see the
-**Contributor Guide** section in [the documentation](https://jupyter-docker-stacks.readthedocs.io/en/latest/) for
-information about how to contribute
-[package updates](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/packages.html),
+Thanks for contributing!
+Please see the **Contributor Guide** section in [the documentation](https://jupyter-docker-stacks.readthedocs.io/en/latest/)
+for information about how to contribute
+[issues](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/issues.html),
+[features](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/features.html),
 [recipes](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/recipes.html),
 [tests](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/tests.html),
-[features](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/features.html),
 [community-maintained stacks](https://jupyter-docker-stacks.readthedocs.io/en/latest/contributing/stacks.html).
 
 <!-- markdownlint-disable-file MD041 -->