Clarify example

proposals/1442-state-resolution.md

@@ -488,7 +488,7 @@ event.
 
 # Appendix
 
-## Example 1
+## Example 1 - Mainline
 
 The following is an example room DAG, where time flows down the page. We shall
 work through resolving the state at both _Message 2_ and _Message 3_.
@@ -545,7 +545,7 @@ auth checks, and so the last topic, _Topic 4_, is chosen.
 This gives the resolved state at _Message 3_ to be _Topic 4_.
 
 
-## Example 2
+## Example 2  - Rejected Events
 
 The following is an example room DAG, where time flows down the page. The event
 `D` is initially rejected by the server (due to not passing auth against the
@@ -553,9 +553,12 @@ state), but does pass auth against its auth chain.
 
 ![state-res-rejected.png](images/state-res-rejected.png)
 
+(Note that the blue lines are the power levels pointed to in the event's auth
+events)
+
 At `F` we first resolve the power levels, which results in `E`. When we then go
-to resolve the topics against the partially resolved state Bob has ops, and so
+to resolve the topics against the partially resolved state, Bob has ops and so
-the resolved state include the topic change `D`, even though it was initially
+the resolved state includes the topic change `D`, even though it was initially
 rejected.