Fix typos across the codebase (thanks codespell!)

parsers/src/data_forms.rs

@@ -125,7 +125,7 @@ impl Field {
     /// [XEP-0068](https://xmpp.org/extensions/xep-0068.html).
     ///
     /// This function requires knowledge of the form's type attribute as the
-    /// criteria differ slighly among form types.
+    /// criteria differ slightly among form types.
     pub fn is_form_type(&self, ty: &DataFormType) -> bool {
         // 1. A field must have the var FORM_TYPE
         if self.var != "FORM_TYPE" {

parsers/src/lib.rs

@@ -192,7 +192,7 @@ pub mod carbons;
 /// XEP-0293: Jingle RTP Feedback Negotiation
 pub mod jingle_rtcp_fb;
 
-/// XEP-0294: Jingle RTP Header Extensions Negociation
+/// XEP-0294: Jingle RTP Header Extensions Negotiation
 pub mod jingle_rtp_hdrext;
 
 /// XEP-0297: Stanza Forwarding

parsers/src/message.rs

@@ -209,7 +209,7 @@ impl Message {
     ///
     /// Returns the first matching payload element as parsed struct or its
     /// parse error. If no element matches, `Ok(None)` is returned. If an
-    /// element matches, but fails to parse, it is nontheless removed from
+    /// element matches, but fails to parse, it is nonetheless removed from
     /// the message.
     ///
     /// Elements which do not match the given type are not removed.

parsers/src/ns.rs

@@ -183,7 +183,7 @@ pub const CARBONS: &str = "urn:xmpp:carbons:2";
 /// XEP-0293: Jingle RTP Feedback Negotiation
 pub const JINGLE_RTCP_FB: &str = "urn:xmpp:jingle:apps:rtp:rtcp-fb:0";
 
-/// XEP-0294: Jingle RTP Header Extensions Negociation
+/// XEP-0294: Jingle RTP Header Extensions Negotiation
 pub const JINGLE_RTP_HDREXT: &str = "urn:xmpp:jingle:apps:rtp:rtp-hdrext:0";
 
 /// XEP-0297: Stanza Forwarding

parsers/src/pubsub/pubsub.rs

@@ -293,7 +293,7 @@ pub enum PubSub {
         configure: Option<Configure>,
     },
 
-    /// A subcribe request.
+    /// A subscribe request.
     Subscribe {
         /// The subscribe request.
         subscribe: Option<Subscribe>,