Use consolidated config.toml from common submodule

Author: vladimir-litvinchik

build_docs.cmd

@@ -7,4 +7,4 @@ xcopy net common\content\%PRODUCT%\net /s /e /Y /i
 xcopy python-net common\content\%PRODUCT%\python-net /s /e /Y /i
 xcopy _index.md common\content\%PRODUCT% /Y
 cd common
-call hugo server --config config-geekdoc.toml,ignore-total-config.toml,show-feedback-config.toml
+call hugo server