Merge branch 'feature/add-graphql-to-source-extensions' into 'develop'

Add .graphql to source_extensions and remove .md

See merge request genaiic-reusable-assets/engagement-artifacts/genaiic-idp-accelerator!439

Author: rstrahan

publish.py

@@ -1983,10 +1983,10 @@ def get_source_files_checksum(self, directory):
             ".yml",
             ".json",
             ".txt",
-            ".md",
             ".toml",
             ".cfg",
             ".ini",
+            ".graphql",
         }
         exclude_dirs = {
             "__pycache__",