Fix minor spelling mistake from
@@ -693,7 +693,7 @@ that requested by the requester in the ``v`` parameter).
Specify (or remark that it is unspecified) how the server handles divergent
history. DFS? BFS? Anything weirder?
-Retriving events
+Retrieving events
----------------
In some circumstances, a homeserver may be missing a particular event or information
