ci: fix docs checker for wiki based docs (#27380)

diff --git a/.github/helper/documentation.py b/.github/helper/documentation.py
index 91983d3..378983e 100644
--- a/.github/helper/documentation.py
+++ b/.github/helper/documentation.py
@@ -24,6 +24,8 @@
 					parts = parsed_url.path.split('/')
 					if len(parts) == 5 and parts[1] == "frappe" and parts[2] in docs_repos:
 						return True
+				elif parsed_url.netloc == "docs.erpnext.com":
+					return True
 
 
 if __name__ == "__main__":