Rename doc-guide.rst to doc_guide.rst

source/doc-guide.rst → source/doc_guide.rst

@@ -961,4 +961,4 @@ Similarly to the note directive, one can include todo boxes but it requires the
 
 .. _Git Tutorial: https://try.github.io/levels/1/challenges/1
 .. _Git Install: http://git-scm.com/book/en/Getting-Started-Installing-Git
-.. _Atlassian Git site: https://www.atlassian.com/git/tutorials
+.. _Atlassian Git site: https://www.atlassian.com/git/tutorials