docs: update references to SecureJoin protocols

src/securejoin.rs

@@ -1,4 +1,4 @@
-//! Verified contact protocol implementation as [specified by countermitm project](https://securejoin.readthedocs.io/en/latest/new.html#setup-contact-protocol).
+//! Implementation of [SecureJoin protocols](https://securejoin.delta.chat/).
 
 use anyhow::{bail, Context as _, Error, Result};
 use percent_encoding::{utf8_percent_encode, AsciiSet, NON_ALPHANUMERIC};

src/token.rs

@@ -2,7 +2,7 @@
 //!
 //! Functions to read/write token from/to the database. A token is any string associated with a key.
 //!
-//! Tokens are used in countermitm verification protocols.
+//! Tokens are used in SecureJoin verification protocols.
 
 use anyhow::Result;
 use deltachat_derive::{FromSql, ToSql};