Update documentation to refer to RFC 8949 instead of 7049 (#67)

Co-authored-by: Laurence Lundblade <lgl@securitytheory.com>
diff --git a/src/qcbor_decode.c b/src/qcbor_decode.c
index 585a517..4e25faf 100644
--- a/src/qcbor_decode.c
+++ b/src/qcbor_decode.c
@@ -1902,7 +1902,7 @@
  *
  * This maps the CBOR tag to the QCBOR type and checks the content
  * type.  Nothing more. It may not be the most important
- * functionality, but it part of implementing as much of RFC 7049 as
+ * functionality, but it part of implementing as much of RFC 8949 as
  * possible.
  *
  * This returns QCBOR_SUCCESS if the tag was procssed,