Merge pull request #25 from dcamron/suggest-edits

Add suggest edits to top repo button

Author: brian-rose

_config.yml

@@ -33,5 +33,7 @@ launch_buttons:
 html:
   use_issues_button: true
   use_repository_button: true
+  use_edit_page_button: true
   extra_footer: |
     All code in Pythia Foundations is licensed under Apache 2.0. All other non-code content is licensed under <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons BY 4.0 (CC BY 4.0)</a>.
+    We want your feedback! See the "open issue" and "suggest edit" buttons under the GitHub logo at the top of this page.

environment.yml

@@ -7,3 +7,5 @@ dependencies:
   - matplotlib
   - numpy
   - pre-commit
+  - xarray
+  - cartopy

preamble/how-to-contribute.md

@@ -8,4 +8,6 @@ This site is built with [JupyterBook](https://jupyterbook.org).
 
 A full contributor's guide will appear here, cross-referencing our tutorials on open Pull Requests on GitHub.
 
+A simple way to comment on anything you find in this book is to use the "open issue" and "suggest edit" buttons under the GitHub Octocat logo at the top of each page. These links will take you to GitHub where the source material for the book is hosted. You'll need a free (and broadly useful) GitHub account.
+
 Basic instructions on how to build the JupyterBook locally can be found on the README page of the book's [source repository on GitHub](https://github.com/ProjectPythia/pythia-foundations).