update readme with POSH info

README.md

@@ -4,17 +4,17 @@ Basic scripts to generate SRI hashes. POSIX-compliant shell script for use on *n
 
 ## common features
 
-- Hash individual files or a quoted space-delimited list of files.
+- Hash individual files or a list of files.
 - Hash all files within a specified directory with one command.
 - Hash a filtered-list of files within a directory with one command.
 - Process a list of files and a directory (filtered or not) at the same time, saving you typing!
 
-## linux script
+## Linux script
 
 - This script *requires* openssl be installed and will exit if it cannot find openssl.
 - You can rename *sri* to anything you like.
 - I suggest copying *sri* somewhere like */usr/local/bin* or */usr/bin* so it can be run easier and from anywhere (see note below).
-- Complete help is included in the script. Simply run without any parameters or run with '*--help*'.
+- Complete instructions are included in the script. Simply run without any parameters or run with '*--help*'.
 
   ```bash
   ./sri --help
@@ -60,3 +60,31 @@ ls -lA /path/to/sri
 # -rwxr-xr-x 1 user user 3622 Jun 20 01:18 sri
 # note the x's --> -rwXr-Xr-X (capitals for emphasis)
 ```
+
+## PowerShell (POSH) script
+
+- You can rename this script to anything you want.
+- I suggest copying this script to a simple path since you must execute POSH scripts using their full path.
+- Complete instructions are included in the script. Run `Get-Help` as you would with any other POSH script.
+
+  ```powershell
+  Get-Help .\sri.ps1  # basic help including syntax
+  Get-Help .\sri.ps1 -examples  # detailed examples of script usage
+  Get-Help .\sri.ps1 -detailed   # full help document
+  ```
+
+### execution policy
+
+By default, Windows does not permit running any POSH scripts. You can change this behaviour by opening PowerShell as an administrator and entering the following command:
+
+```powershell
+Set-ExecutionPolicy RemoteSigned
+```
+
+This will allow scripts created on your machine to run as well an as *signed* scripts created on other machines. My script is signed, so it should run without any problems. This setting is far safer than bypassing the execution policy.
+
+You can search for alternate bypass methods, but I have not included them here since switching to *RemoteSigned* is the technically correct approach.
+
+## final thoughts
+
+I hope these scripts help you out! If you have any comments, suggestions or improvements, please file an issue. I love getting feedback and learning new ways of doing things. For more scripts like this or solutions to common computing annoyances, check out my blog at [MyTechieThoughts.com](https://mytechiethoughts.com).