Adds some links around telegram APIs

README.md

@@ -256,6 +256,7 @@ Keep it pluggable, otherwise its of no use.
 :gift: :sparkles:
 
 There are quite a lot of Telegram channels that are popping up these days that I really like using.
+
 Except there are lots of issues with telegram channels:
 
 1.  They are inside a closed network by-default. In order to access them you need to use the Telegram client
@@ -280,6 +281,14 @@ of difference in that this doesn't require perission from the channel admins any
 
 You could likely get this sponsored from the Internet Archive if you get something up and running.
 
+Related links:
+
+- [My attempt](https://github.com/captn3m0/opengram) - didn't go anywhere because the Node.JS library wasn't feature complete.
+- [MTProto Docs](https://core.telegram.org/mtproto)
+- [Various Telegram client source code](https://github.com/TelegramOrg)
+- [MTProto proxy](https://mtproto.co/)
+- [Difference between the MTProto and Bot APIs](https://docs.pyrogram.org/topics/mtproto-vs-botapi)
+
 ## Disable Local Fonts Extension
 
 :gift: