[AIRFLOW-XXX] add note warning that bash>4.0 is required for docs bui…

…ld script (#6947) (cherry picked from commit dfc7b60)
apache · Jan 21, 2020 · 8ab6894 · 8ab6894
1 parent 1c25a46
commit 8ab6894
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
@@ -95,6 +95,10 @@ To generate a local version:
     ./build.sh
     ./start_doc_server.sh
 
+.. note::
+    The docs build script ``build.sh`` requires bash 4.0 or greater.
+    If you are building on mac, you can install latest version of bash with homebrew.
+
 
 Pull Request Guidelines
 =======================