fix typos/grammar

Author: tasxatzial

exercises/practice/scrabble-score/.approaches/introduction.md

@@ -1,7 +1,7 @@
 # Introduction
 
-There are various idiomatiuc ways to solve Scrabble Score.
-The approaches could be to use a series of `if` statements, or a single `switch` statment.
+There are various idiomatic ways to solve Scrabble Score.
+The approaches could be to use a series of `if` statements, or a single `switch` statement.
 Another approach could be to look up the score in a `HashMap` from inside the `reduce()` method.
 
 ## General guidance

exercises/practice/scrabble-score/.approaches/switch-statement/content.md

@@ -51,7 +51,7 @@ because its value does not need to be changed once it is set.
 In the constructor, a local variable is defined for being updated in the [`for` loop][for-loop].
 
 ~~~~exercism/note
-Using the same for a variable in a nested local scope that is used in its enclosing higher scope is called
+Using the same name for a variable in a nested local scope that is used in its enclosing higher scope is called
 [variable shadowing](https://www.geeksforgeeks.org/shadowing-in-java/).
 ~~~~