fixes based on reviews

subjects/expected_variable/README.md

@@ -36,8 +36,8 @@ fn main() {
         expected_variable("soClose", "So_Close").unwrap()
     );
     println!(
-        "{} close to it",
-        expected_variable("something", "something_completely_different").unwrap()
+        "{:?}",
+        expected_variable("something", "something_completely_different")
     );
     println!(
         "{} close to it",
@@ -50,9 +50,9 @@ And its output:
 
 ```sh
 $ cargo run
-100%
-88%
-Fail
-73%
+100% close to ir
+88% close to it
+None
+73% close to it
 $
 ```

subjects/mobs/README.md

@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Create a module `mob`, in which has to be present:
+Create a module `mobs`, in which has to be present:
 
 - a `Mob` structure which consists of:
   - a String `name`
@@ -43,6 +43,8 @@ Create also two submodules of mob:
   - the Member struct should implement a function `get_promotion` which will change the member role. If a member is an Associate, it will get promoted to Soldier; a Soldier is promoted to a Caporegime and a Caporegime is promoted to Underboss
   - a function `new` which return a Member on receiving a name(&str), a role (Role) and an age (u8)
 
+The submodules should be created inside a folder called `mobs`. We advise you to create two files one to each submodule, but it is up to you.
+
 You must include `#[derive(Debug, CLone, PartialEq)]` on top of every struct and the enum.
 
 ### Expected Function