Add a command to allow the execution of the winlogbeat.exe file (#38)

Co-authored-by: Clint Baxley <[email protected]>

docs/markdown/chapter3/chapter3.md

@@ -221,6 +221,7 @@ Figure 3: Winlogbeat Install Location
 Then, move the 'winlogbeat.yml' file located at ```C:\Program Files\lme\winlogbeat.yml``` into the winlogbeat folder ```C:\Program Files\lme\winlogbeat-8.[x].[y]-windows-x86_64```, overwriting the existing file when prompted to do so.
 
 Now, open PowerShell as an administrator and run the following command from the winlogbeat directory, allowing the script to run if prompted to do so: ```./install-service-winlogbeat.ps1```
+If you receive a permissions error you can run ```Set-ExecutionPolicy Unrestricted -Scope Process``` to be able to run the installer. 
 
 ![Winlogbeat Install Script](/docs/imgs/winlogbeat-install.png)
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