Suggest https:// git urls

Committed via https://github.com/asottile/all-repos

README.md

diff --git a/README.md b/README.md
index ae1eb54..6a6af91 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 Add this to your `.pre-commit-config.yaml`
 
-    -   repo: git://github.com/pre-commit/pre-commit-hooks
+    -   repo: https://github.com/pre-commit/pre-commit-hooks
         rev: v1.3.0  # Use the ref you want to point at
         hooks:
         -   id: trailing-whitespace