Apply suggestions from code review

Co-authored-by: Andrew Morgan <[email protected]>

Author: richvdh

proposals/2610-remove-oauth2-auth-type.md

@@ -15,7 +15,7 @@ The definition of
 authentication is incomplete. [OAuth2](https://oauth.net/2/) is best considered
 as a framework for implementing authentication protocols rather than a protocol
 in its own right, and this section says nothing about the grant types, flows
-and scopes which a compliant implemenation should understand.
+and scopes which a compliant implementation should understand.
 
 A better candidate for OAuth2-based authentication of matrix clients is via
 [OpenID Connect](https://openid.net/connect/), but this has already been
@@ -27,7 +27,7 @@ and redundant. It should be removed from the specification to reduce confusion.
 ## Alternatives
 
 It would be possible to extend the definition so that it is complete: as
-mentioned above, a likely implemenation would be based on OpenID
+mentioned above, a likely implementation would be based on OpenID
 Connect. Matrix clients could then follow the standardised OpenID Connect flow
 rather than the matrix-specific `m.login.sso` flow. However, this would require
 significant design work, and development in both clients and servers, which