fix typo

Author: thetayloredman

proposals/4439-support-contact-encryption.md

@@ -41,7 +41,7 @@ None identified.
 ## Alternatives
 
 Sensitive communications may instead be conducted over Matrix, where E2EE is native. However, some researchers prefer
-or mandate out-of-band channels, which this MSC accomodates.
+or mandate out-of-band channels, which this MSC accommodates.
 
 ## Unstable prefix