Merge typo fixes suggested by an unnamed user.
An entity advertises support for this protocol by including the "urn:xmpp:http:upload" in its service discovery information features as specified in &xep0030; or section 6.3 of &xep0115;. To avoid unnecessary round trips an entity SHOULD also include the maximum file size as specified in &xep0128; if such a limitation exists. The field name MUST be "max-file-size" and the value MUST be in bytes.
-A users server SHOULD include any known entities that provide such services into its service discovery items.
+A user's server SHOULD include any known entities that provide such services into its service discovery items.
tbd
+tbd
- Clarify Direct PubSub access to each node type + Clarify Direct PubSub access to each node type.