Fixes DOC-1715, video doc is now in the correct RTD project

docs/config.ini

@@ -39,7 +39,7 @@ content_libraries = creating_content/libraries.html
 content_groups = cohorts/cohorted_courseware.html
 group_configurations = content_experiments/content_experiments_configure.html#set-up-group-configurations-in-edx-studio
 container = developing_course/course_components.html#components-that-contain-other-components
-video = index.html
+video = video/video_uploads.html
 certificates = building_course/creating_course_certificates.html
 
 # below are the language directory names for the different locales