update docu sources

Author: neodix42

adnl/ADNL-TCP-Liteserver.md

@@ -1,5 +1,8 @@
 
 ## ADNL TCP + Liteserver
+
+Originally written by Oleg Baranov https://github.com/xssnick/ton-deep-doc/blob/master/ADNL-TCP-Liteserver.md
+
 This is the lower level protocol on which all interaction in the TON network is built, it can work on top of any protocol, but is most often used on top of TCP and UDP. UDP is used for communication between nodes, and TCP is used for communication with lite servers.
 
 Now we will analyze ADNL running over TCP and learn how to interact with lite servers directly.

adnl/ADNL-UDP-Internal.md

@@ -1,4 +1,6 @@
-## ADNL UDP (by Oleg Baranov https://github.com/xssnick/ton-deep-doc/blob/patch-1/TL.md)
+## ADNL UDP
+
+Originally written by Oleg Baranov https://github.com/xssnick/ton-deep-doc/blob/master/ADNL-UDP-Internal.md
 
 ADNL over UDP is used by nodes and TON components to communicate with each other. It is a low-level protocol on top of which other, higher-level TON protocols such as DHT and RLDP operate. In this article, we will analyze how ADNL over UDP works for basic data exchange between nodes, tunneling and anonymizing traffic will be discussed in a separate article.
 

tl/TL.md

@@ -1,5 +1,7 @@
 # TL
 
+Originally written by Oleg Baranov https://github.com/xssnick/ton-deep-doc/blob/master/TL.md
+
 TL (Type Language) is a language for describing data structures.
 
 For structuring useful data, when communicating, [TL schemas](https://github.com/ton-blockchain/ton/tree/master/tl/generate/scheme) are used.