Update watchlist for activitypub apps - added 'new to this page' symbol to key

watchlist-for-activitypub-apps.md

@@ -1,6 +1,8 @@
-✔ **added to live website**
+✔ == **added to live website**
 
-🎉 **projects that have successfully federated with this protocol**
+🎉 == **projects that have successfully federated with this protocol**
+
+:black_nib: == newly added to this page (added, not altered. Only @lostinlight to remove please)
 
 *Note*: Tools with open protocol issue (not yet implemented), not fully open sourced code, no documentation at all, or alpha state with development inactive for several months, not added for now.