chore: Use subheader for contributors

mafredri · johnstcn · web-flow · commit 81a9b1358dec · 2022-04-27T14:39:48.000+03:00
Co-authored-by: Cian Johnston &lt;public@cianjohnston.ie&gt;
diff --git a/docs/README.md b/docs/README.md
@@ -96,7 +96,7 @@ coder templates update gcp-linux
 
 Read the [contributing docs](./CONTRIBUTING.md).
 
-# Contributors
+## Contributors
 
 <!--- Add your row by date (mm/dd/yyyy), most recent date at end of list --->
 
