Added Git metadata cloning article link

bkuhlmann · bkuhlmann · commit a401338d2459 · 2021-01-13T12:57:15.000-07:00
Provides additional insight into different kinds of cloning, especially
when you only care about repository metadata.
diff --git a/rev_news/drafts/edition-71.md b/rev_news/drafts/edition-71.md
@@ -43,6 +43,8 @@ __Various__
 
 __Light reading__
 
+* [Git Metadata Cloning](https://www.alchemists.io/articles/git_metadata_cloning)- Learn about the
+  performance impacts of cloning repository metadata.
 
 __Git tools and sites__
 
