Group prerequisites so it's not as confusing

Author: waf

INSTALL.md

@@ -10,15 +10,14 @@ There are 3 parts to configure; all of them are optional:
 <details><summary><strong>Powershell colors</strong></summary>
 <p>
 
+1. Install the prerequisites:
+    - PSReadLine 2.0 or later. It's installed by default in Windows 10, but you'll most likely [need to upgrade it](https://github.com/lzybkr/PSReadLine#user-content-upgrading). You can verify your PSReadLine version by running `(Get-Module PSReadLine).Version.Major`
+    - Install git integration (posh-git) with `Install-Module -Name posh-git -AllowPrerelease -Force` . If you don't have an `-AllowPrerelease` flag, upgrade PowerShellGet with `Install-Module -Name PowerShellGet -Force` first.
 1. [Download and unzip](https://raw.githubusercontent.com/waf/dracula-cmd/master/dist/ColorTool.zip) ColorTool. The [source code](https://github.com/Microsoft/Terminal/tree/master/src/tools/ColorTool) is available from Microsoft.
-1. Open PowerShell, navigate to unzipped `ColorTool` directory, and run `install.cmd`.
-1. Right-click on the window titlebar and choose `Properties`, then on the `Font` tab choose Consolas. Click `OK` to save.
-1. Install PSReadLine 2.0 or later. It's installed by default in Windows 10, but you'll most likely [need to upgrade it](https://github.com/lzybkr/PSReadLine#user-content-upgrading). You can verify your PSReadLine version by running `(Get-Module PSReadLine).Version`
-    - If you see errors when upgrading, please see [this issue in PSReadLine](https://github.com/PowerShell/PowerShellGet/issues/318#issuecomment-418605987).
+1. Open PowerShell, navigate to the unzipped `ColorTool` directory, and run `install.cmd`.
 1. Include [this powershell configuration](https://github.com/dracula/powershell/blob/master/theme/dracula-prompt-configuration.ps1) in your PowerShell `$profile` file.<sup>[1](https://github.com/dracula/powershell#user-content-profile-explanation)</sup>
-1. Install git integration (posh-git) with `Install-Module -Name posh-git -AllowPrerelease -Force`
-    - If you don't have an `-AllowPrerelease` flag, upgrade PowerShellGet with `Install-Module -Name PowerShellGet -Force` first.
-    
+1. Right-click on the window titlebar and choose `Properties`, then on the `Font` tab choose Consolas. Click `OK` to save.
+
 </p>
 </details>