Update 1708-well-known-for-federation.md

proposals/1708-well-known-for-federation.md

@@ -122,9 +122,9 @@ Alice will be unable to send messages to Bob. (This is the same problem we have
 [SNI](https://github.com/matrix-org/synapse/issues/1491#issuecomment-415153428).)
 
 The main defence against this seems to be to release support for `.well-known`
-as soom as possible, to maximise uptake in the ecosystem. It is likely that, as
+as soon as possible, to maximise uptake in the ecosystem. It is likely that, as
 we approach Matrix 1.0, there will be sufficient other new features (such as
-new Room versions) that upgading will be necessary anyway.
+new Room versions) that upgrading will be necessary anyway.
 
 
 ## Security considerations