Add required version number

liamtoney · liamtoney · commit 564d741fc310 · 2020-01-20T15:05:18.000-09:00
diff --git a/.readthedocs.yml b/.readthedocs.yml
@@ -1,2 +1,4 @@
+version: 2
+
 conda:
   environment: environment.yml

-Original file line number
+Diff line change
@@ @@ -1,2 +1,4 @@ @@
 +version: 2
++
 conda:
   environment: environment.yml