Merge pull request #413 from apollographql/smyrick-patch-1

Update members.mdx

src/content/graphos/org/members.mdx

@@ -30,10 +30,13 @@ You can override a member's organization-wide role for individual graphs. For ex
 
 Members with the **Graph Admin** or **Org Admin** role can assign graph-specific roles from the Permissions tab of the graph's Settings page.
 
+### Hidden graphs
 If a graph is made [hidden](../graphs/studio-features/#internal-graph-visibility-enterprise-only), then only users with explicit overrides (as well as **Org Admin**s) can see the graph.
 
+### Graph admin override
 The **Graph Admin** and **Org Admin** roles have exactly the same permissions for a particular graph, so you can only grant a **Graph Admin** override, not an (equivalent) **Org Admin** override.
 
+### Default on graph creation
 When **Contributor**s in an organization create a new graph, they are automatically granted the **Graph Admin** role for that graph.
 
 ## Role permissions