Review and update installation instructions.

README.md

@@ -105,23 +105,22 @@ rules.
 
 ## Installation
 
-**TODO: rework section!**
-
-~~Currently the service doesn't have a *conventional* installer but rather has to
-be registered using the `InstallUtil.exe` tool coming with the .NET framework. A
+The AutoTx service doesn't have a *conventional* installer but rather has to be
+registered using the `InstallUtil.exe` tool coming with the .NET framework. A
 PowerShell script to help with the installation is provided with each AutoTx
-package. To use the script, follow these steps:~~
+package. To use the script, follow these steps:
 
 - Log on to the computer using an account with adminstrative privileges.
 - Edit the `ScriptsConfig.ps1` settings file, adjust the values according to
   your setup.
-- Open a PowerShell console using the `Run as Administrator` option. This is
-  absolutely crucial, as otherwise `InstallUtil` will fail to do its job. Simply
-  being logged on to the computer as an admin is **NOT SUFFICIENT!** The script
+- Open a PowerShell console using the `Run as Administrator` option. The script
   [Run-ElevatedPowerShell.ps1](Scripts/Run-ElevatedPowerShell.ps1) can  be used
   to start a shell with elevated permissions.
 - Navigate to the installation package directory, run the `Install-Service.ps1`
   script.
+- Supply the two required configuration files in the `conf/` subdirectory of
+  the service installation location and start the service using `Start-Service
+  AutoTx`.
 
 ### Manual Installation