Update README.md

code/week02/README.md

@@ -1,6 +1,8 @@
-## Lecture 2 notes
+# Lecture 2 notes
+Lecture notes based on the first ever official https://github.com/input-output-hk/plutus-pioneer-program/[Plutus-Pioneer program]. This notes follow the https://www.youtube.com/watch?v=E5KRk5y9KjQ/[YouTube lecture 2]
 
-1) Get started with the cabal repl
+[[get-started]]
+## 1) Get started with the cabal repl
 
 Since we are not installing cabal locally, bacause it is much more convenient to use it from nix-shell (this is included in nix), we will navigate to the plutus-pioneer/week02 git-cloned repo inside a nix environment. However, nix must be started first from the plutus root repo.
 
@@ -20,13 +22,16 @@ Some examples seeing the type of Data and create bite-string on the fly (use lit
     repl$ :t B "Haskellanians"
 
 ## ---------------------------------------------------------------------------------------
-2) Implement our first validator. Start a Haskell module "Week02.Gift" where the script imports all the necessary language extensions that plutus needs. (first 8 lines `{-#...#-}`) and other modules that we refer to (lines 12-28) from the `./week01/EnglishAuction.hs` script.
+
+[[first-validator]]
+## 2) Implement our first validator. Start a Haskell module "Week02.Gift" where the script imports all the necessary language extensions that plutus needs. (first 8 lines `{-#...#-}`) and other modules that we refer to (lines 12-28) from the `./week01/EnglishAuction.hs` script.
 
 Go back to the repl and load Gift.hs. Then we will see what a Monoid in haskell `()`
 
     repl$ :l ./src/Week02/Gift.hs 
     repl$ :t ()
 
-We can open Gift.hs in a text editor and see that lines 31-35 contain the implementation of Monoid
+We can open Gift.hs in a text editor and see that lines 31-35 contain the implementation of Monoid referring to the [get-started] section above.
+