diff --git a/docs/TESTING.md b/docs/testing.md
similarity index 100%
rename from docs/TESTING.md
rename to docs/testing.md
diff --git a/mkdocs.yml b/mkdocs.yml
index ab3b28ee8..e90ca073f 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -15,4 +15,6 @@ pages:
   - 'Home': index.md
   - 'Features': features.md
   - 'Install': install.md
-  - 'Documentation': documentation.md
+  - 'Development':
+    - 'Testing': testing.md
+    - 'Documentation': documentation.md