[kowainik#41] Add newlines to fix doctest for the second chapter (kow…

…ainik#44)

Resolves kowainik#41

README.md

@@ -137,6 +137,7 @@ Starting to learn Haskell with Learn4Haskell is very easy!
 
 1. [Fork this repository](https://docs.github.com/en/free-pro-team@latest/github/getting-started-with-github/fork-a-repo).
 2. Enable GitHub Actions for your fork repository.
+    * Visit: https://github.com/<YOUR_GITHUB_USERNAME>/learn4haskell/actions
 3. [Install the Haskell compiler](#installing-haskell).
 4. Open the `src/Chapter1.hs` file, and start learning and solving tasks!
 5. After you finish the first chapter (or any other chapter, or even if you are

src/Chapter2.hs

@@ -137,30 +137,39 @@ functions in GHCi and insert the corresponding resulting output below:
 List of booleans:
 >>> :t [True, False]
 
+
 String is a list of characters:
 >>> :t "some string"
 
+
 Empty list:
 >>> :t []
 
+
 Append two lists:
 >>> :t (++)
 
+
 Prepend an element at the beginning of a list:
 >>> :t (:)
 
+
 Reverse a list:
 >>> :t reverse
 
+
 Take first N elements of a list:
 >>> :t take
 
+
 Create list from N same elements:
 >>> :t replicate
 
+
 Split a string by line breaks:
 >>> :t lines
 
+
 Join a list of strings with line breaks:
 >>> :t unlines