Should be github.com, not github.io in clone command

MarkEEaton · web-flow · commit 1078819c7e3f · 2021-05-14T11:17:11.000-04:00
diff --git a/README.md b/README.md
@@ -25,7 +25,7 @@ If you prefer you can create a page on the [wiki](https://github.com/docnow/twar
 
 If you are interested in adding functionality to twarc or fixing something that's broken here are the steps to setting up your development environment:
 
-    git clone https://github.io/docnow/twarc
+    git clone https://github.com/docnow/twarc
     cd twarc
     pip install -r requirements.txt
 
