fix typos (dotnet#10124)

Author: gewarren

snippets/powershell/VS_Snippets_CLR_System/system.collections.hashtable.class/ps/hashtable.ps1

@@ -10,29 +10,29 @@
 #>
 
 #<snippet00>
-# Create new hash table using PowerShell syntax
+# Create new hash table using PowerShell syntax.
 $OpenWith = @{}
 
-# Add one element to the hash table using the Add method
+# Add one element to the hash table using the Add method.
 $OpenWith.Add('txt', 'notepad.exe')
 
-# Add three eleements using PowerShell syntax three different ways
+# Add three elements using PowerShell syntax three different ways.
 $OpenWith.dib = 'paint.exe'
 
 $KeyBMP = 'bmp'
 $OpenWith[$KeyBMP] = 'paint.exe'
 
 $OpenWith += @{'rtf' = 'wordpad.exe'}
 
-# Display hash table
+# Display hash table.
 "There are {0} in the `$OpenWith hash table as follows:" -f $OpenWith.Count
 ''
 
-# Display hashtable properties
+# Display hashtable properties.
 'Count of items in the hashtable  : {0}' -f $OpenWith.Count
 'Is hashtable fixed size?         : {0}' -f $OpenWith.IsFixedSize
 'Is hashtable read-only?          : {0}' -f $OpenWith.IsReadonly
-'Is hashtabale synchronised?      : {0}' -f $OpenWith.IsSynchronized
+'Is hashtable synchronised?      : {0}' -f $OpenWith.IsSynchronized
 ''
 'Keys in hashtable:'
 $OpenWith.Keys
@@ -46,17 +46,17 @@ This script produces the following output:
 
 There are 4 in the $OpenWith hash table as follows:
 
-Name                           Value                                                                            
-----                           -----                                                                            
-txt                            notepad.exe                                                                      
-dib                            paint.exe                                                                        
-bmp                            paint.exe                                                                        
-rtf                            wordpad.exe                                                                      
+Name                           Value
+----                           -----
+txt                            notepad.exe
+dib                            paint.exe
+bmp                            paint.exe
+rtf                            wordpad.exe
 
 Count of items in the hashtable  : 4
 Is hashtable fixed size?         : False
 Is hashtable read-only?          : False
-Is hashtabale synchronised?      : False
+Is hashtable synchronised?      : False
 
 Keys in hashtable:
 txt
@@ -70,4 +70,4 @@ paint.exe
 paint.exe
 wordpad.exe
 #>
-#</snippet00>
+#</snippet00>