Fix quotes on conf.py

Author: derobins

docs/sphinx/conf.py

@@ -24,7 +24,7 @@
 version = version_number
 release = version_number
 external_projects_current_project = "rocshmem"
-extensions = ['sphinx_design']
+extensions = ["sphinx_design"]
 external_toc_path = "./sphinx/_toc.yml"
 
 docs_core = ROCmDocs(left_nav_title)