Update doc/api/deprecations.md

Co-authored-by: Frazer Smith <[email protected]>

Author: aduh95

doc/api/deprecations.md

@@ -3949,7 +3949,7 @@ changes:
 
 Type: End-of-Life
 
-The support for priority signaling has been removed followiung its deprecation in the [RFC 9113][].
+The support for priority signaling has been removed following its deprecation in the [RFC 9113][].
 
 [DEP0142]: #dep0142-repl_builtinlibs
 [NIST SP 800-38D]: https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38d.pdf