WIP: Adds a default commit message when adding a README (#25167)

app/views/projects/empty.html.haml

@@ -16,7 +16,7 @@
     %p
       Otherwise you can start with adding a
       = succeed ',' do
-        = link_to "README", new_readme_path, class: 'underlined-link'
+        = link_to "README", add_special_file_path(@project, file_name: 'README.md'), class: 'underlined-link'
       a
       = succeed ',' do
         = link_to "LICENSE", add_special_file_path(@project, file_name: 'LICENSE'), class: 'underlined-link'