README-en.md edited online with Bitbucket

README-en.md

 
 1. Reviewed the following concepts:
   
-        a. Logical operators
+      a. Logical operators
 
-        b. `if`, `else`, `else if`.
+      b. `if`, `else`, `else if`.
 
 2. Reviewed the following concepts related to objects and classes in C++: