diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..ae447db
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,15 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+
+[*.{yml,yaml}]
+indent_size = 2
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..1137db1
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,11 @@
+##### Description
+
+<!---
+Please include a short description of what your PR does and / or the motivation
+behind it
+--->
+
+##### Checklist
+
+- [ ] Tested functionality against a test repository (see ["How to test changes"](../README.md#how-to-test-changes))
+- [ ] Added or updated relevant documentation (leave unchecked if not applicable)
diff --git a/README.md b/README.md
index dadba0f..fda4674 100644
--- a/README.md
+++ b/README.md
@@ -45,3 +45,10 @@ git commit --amend --no-edit
 git push origin update_flake_lock_action --force
 ```
 
+## Contributing
+
+Feel free to send a PR or open an issue if you find something functions unexpectedly! Please make sure to test your changes and update any related documentation before submitting your PR.
+
+### How to test changes
+
+In order to more easily test your changes to this action, we have created a template repository that should point you in the right direction: https://github.com/DeterminateSystems/update-flake-lock-test-template. Please see the README in that repository for instructions on testing your changes.