A typo in the class name (#888)

* fix: A typo in the class name

* fix: Typo in the var name and wrong addition result

Author: yura

concepts/inout-parameters/about.md

@@ -22,7 +22,7 @@ updateVersion(&dbRecord)
 // dbRecord is now (3, "Exercism")
 ```
 
-~~~~exercism/warrning
+~~~~exercism/warning
 There are a couple of extra rules one should be aware of regarding in-out parameters.
 
 1.  Inside a function with in-out parameters, you are not allowed to reference the variable that was passed in as the in-out parameter.

concepts/inout-parameters/introduction.md

@@ -22,7 +22,7 @@ updateVersion(&dbRecord)
 // dbRecord is now (3, "Exercism")
 ```
 
-~~~~exercism/warrning
+~~~~exercism/warning
 There are a couple of extra rules one should be aware of regarding in-out parameters.
 
 1.  Inside a function with in-out parameters, you are not allowed to reference the variable that was passed in as the in-out parameter.

exercises/concept/high-score-board/.docs/instructions.md

@@ -72,8 +72,8 @@ To update a players score by adding to the previous score, define `updateScore`,
 ```swift
 var highScores = ["Dave Thomas": 0, "José Valim": 486_373]
 addPlayer(&highScores, "Freyja Ćirić", 12_771_008)
-updateScore(&highscores, "Freyja Ćirić", 73)
-// Returns ["Dave Thomas": 0, "José Valim": 486_373, "Freyja Ćirić": 73]
+updateScore(&highScores, "Freyja Ćirić", 73)
+// Returns ["Dave Thomas": 0, "José Valim": 486_373, "Freyja Ćirić": 12_771_081]
 ```
 
 ## 6. Get a list of players with scores ordered by player name

exercises/concept/lasagna-master/.docs/introduction.md

@@ -65,7 +65,7 @@ updateVersion(&dbRecord)
 // dbRecord is now (3, "Exercism")
 ```
 
-~~~~exercism/warrning
+~~~~exercism/warning
 There are a couple of extra rules one should be aware of regarding in-out parameters.
 
 1.  Inside a function with in-out parameters, you are not allowed to reference the variable that was passed in as the in-out parameter.