Update Readability.md

ForEach to foreach. I just saw that :)

Author: C-Bam

Style-Guide/Readability.md

@@ -26,7 +26,7 @@ Continuing in that vein, understand that the following are basically guidelines
 First, format your code properly. The convention is to indent within constructs, to make it clearer what "belongs to" the construct.
 
 ```PowerShell
-ForEach ($computer in $computers) {
+foreach ($computer in $computers) {
     Do-This
     Get-Those
 }