Fix a typo in CONTRIBUTING.md

The URL `git://github.com/USERNAME/hugo.git` is invalid; it should instead be either `https://github.com/USERNAME/hugo.git` or `git@github.com:USERNAME/hugo.git`. I chose the latter for this PR.

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f39bd2fbe7116486f3f488afc9ea780a490344f7..bdfad9d7d80c7371f9d0a0d94d695e5eb5be0f62 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -144,7 +144,7 @@ Now, to make a change to Hugo's source:
 1. Add your fork as a new remote (the remote name, "fork" in this example, is arbitrary):
 
     ```bash
-    git remote add fork git://github.com/USERNAME/hugo.git
+    git remote add fork git@github.com:USERNAME/hugo.git
     ```
 
 1. Push the changes to your new remote: