Add git providers substitution pattern (correcting PGP sig)

Author: benjaoming

docs/conf.py

@@ -172,9 +172,12 @@
     "term": "tooltip",  # for glossaries
 }
 
+# See dev/style_guide.rst for documentation
 rst_epilog = """
 .. |org_brand| replace:: Read the Docs Community
 .. |com_brand| replace:: Read the Docs for Business
+.. |git_providers_and| replace:: GitHub, Bitbucket, and GitLab
+.. |git_providers_or| replace:: GitHub, Bitbucket, or GitLab
 """
 
 # Activate autosectionlabel plugin

docs/dev/style-guide.rst

@@ -67,6 +67,8 @@ The following substitutions are used in our documentation to guarantee consisten
 
 * ``|org_brand|`` is used for mentioning of |org_brand|
 * ``|com_brand|`` is used for mentioning of |com_brand|
+* ``|git_providers_and|`` is used to mention currently support Git providers with "and". Example: |git_providers_and|
+* ``|git_providers_or|`` is used to mention currently support Git providers with "or". Example: |git_providers_or|
 
 Glossary
 --------