spelling fixes: demos (#2060)

demos/Apache/Apache/Apache.psm1

@@ -28,7 +28,7 @@ Function CleanInputString([string]$inputStr){
     $outputStr
 }
 
-#EndRegion utilty functions
+#EndRegion utility functions
 
 #Region Class specifications
 

demos/SystemD/journalctl-demo.ps1

@@ -5,5 +5,5 @@ Write-host -Foreground Blue "Get recent SystemD journal messages"
 Get-SystemDJournal -args "-xe" |Out-Host
 
 #Drill into SystemD unit messages
-Write-host -Foreground Blue "Get recent SystemD jounal messages for services and return Unit, Message"
+Write-host -Foreground Blue "Get recent SystemD journal messages for services and return Unit, Message"
 Get-SystemDJournal -args "-xe" | Where {$_._SYSTEMD_UNIT -like "*.service"} | Format-Table _SYSTEMD_UNIT, MESSAGE | Select-Object -first 10 | Out-Host

demos/crontab/README.md

@@ -3,7 +3,7 @@
 This demo shows examining, creating, and removing cron jobs via crontab.
 
 Output of Get-CronJob is a strongly typed object with properties like DayOfWeek or Command.
-Remove-CronJob prompts before removing the job unless you specifiy -Force.
+Remove-CronJob prompts before removing the job unless you specify -Force.
 
 Tab completion of -UserName is supported, e.g.