Update README, CONTRIBUTING, PR template

.github/pull_request_template.md

@@ -13,3 +13,4 @@ request, mention that information here.
 Thanks for contributing to Metatext! -->
 
 - [ ] I have signed [Metabolist's Contributor License Agreement](https://metabolist.org/cla)
+- [ ] The proposed changes are limited in scope to fixing bugs, or I have discussed larger scope changes via email

CONTRIBUTING.md

@@ -2,6 +2,8 @@
 
 See the [architecture section](https://github.com/metabolist/metatext/blob/main/README.md#architecture) of Metatext's README for an overview of Metatext's code. Make sure you have [SwiftLint](https://github.com/realm/SwiftLint) installed and there are no warnings.
 
+Note that capacity for reviewing pull requests is currently very limited. For now, please limit the scope of proposed changes to fixing bugs and not added features, settings, or behavior, thanks. If you are interested in doing a larger scope change, please propose it via email at info@metabolist.org first.
+
 ## Sign the Contributor License Agreement (CLA)
 
 In order to publish Metatext's source code under the GNU General Public License and be able to dual-license Metatext to Apple for distribution on the App Store, Metabolist must be the sole copyright holder to Metatext's source code. You will need to [sign Metabolist's CLA](https://metabolist.org/cla/) before your pull request can be merged.

README.md

@@ -16,6 +16,8 @@ You can help translate Metatext on [CrowdIn](https://crowdin.com/project/metatex
 
 See the [contribution guidelines](https://github.com/metabolist/metatext/blob/main/CONTRIBUTING.md).
 
+Note that capacity for reviewing pull requests is currently very limited. For now, please limit the scope of proposed changes to fixing bugs and not added features, settings, or behavior, thanks. If you are interested in doing a larger scope change, please propose it via email at info@metabolist.org first.
+
 ## Building
 
 To build Metatext: