♻️ Misc additional fixes (#396)

Author: vexx32

PSKoans/Koans/Foundations/AboutHashtables.Koans.ps1

@@ -172,8 +172,11 @@ Describe 'Hashtables' {
         }
 
         It 'can check if keys or values are present in the hashtable' {
+            # Enter keys and values in this table to make the below tests pass.
+            # You should not need to modify the `Should` assertions themselves.
             $Hashtable = @{
-                # Enter keys and values in this table to make the below tests pass
+                # Example:
+                # KeyName = Value
             }
 
             $Hashtable.ContainsKey('Carrots') | Should -BeTrue

PSKoans/Koans/Foundations/AboutLoopsAndPipelines.Koans.ps1

@@ -115,17 +115,22 @@ Describe 'Pipelines and Loops' {
         }
 
         It 'can loop a set number of times' {
-            $Values = for ($i = 0; $i -lt 5; $i++) {
+            $Values = for ($num = 0; $num -lt 5; $num++) {
                 <#
                     For loops are quite rare in native PowerShell code. They have their uses, but are
                     frequently too semantically obscure to have a place in PS's verbose ecosystem.
-                    Remember:
-                        1. ++ after the variable will reference the existing value then increment the variable.
-                        2. ++ before the variable will increment the variable and then reference the new value.
                 #>
-                $i
+                $num
             }
-            $Values | Should -Be __
+
+            # What will the above loop store in $Values?
+            $Values | Should -Be @(
+                __
+                __
+                __
+                __
+                __
+            )
         }
 
         It 'can loop while a condition is $true' {

PSKoans/Koans/Katas/SortingCharacters.Koans.ps1

@@ -16,6 +16,7 @@ param()
     sorts all characters in a string alphabetically. Punctuation and spaces should be ignored entirely.
 #>
 Describe 'Kata - Sorting Characters' {
+
     BeforeAll {
         $Verification = {
             $Functions = [Hashset[string]]::new([StringComparer]::OrdinalIgnoreCase)