Add missing dependency on attrs to docs/requirements.txt to fix Sphinx autodoc

tleonhardt · tleonhardt · commit 920e3e0e3b5f · 2018-07-27T16:42:43.000-04:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1,3 +1,4 @@
+attrs
 colorama
 pyperclip
 wcwidth

-Original file line number
+Diff line change
@@ @@ -1,3 +1,4 @@ @@
 +attrs
 colorama
 pyperclip
 wcwidth