Updated Health Checks (markdown)

Health-Checks.md

@@ -13,7 +13,11 @@ Newer versions of Lidarr are targeted for .NET Core.  We provide legacy mono bui
 
 This should only happen on linux hosts.  To remedy, download the correct build for your architecture: [x64](https://services.lidarr.audio/v1/update/nightly/updatefile?os=linux&runtime=netcore&arch=x64) or [arm64](https://services.lidarr.audio/v1/update/nightly/updatefile?os=linux&runtime=netcore&arch=arm64) or [arm](https://services.lidarr.audio/v1/update/nightly/updatefile?os=linux&runtime=netcore&arch=arm).
 
-Delete your existing binaries and replace with the contents of the `.tar.gz` you just downloaded.  Update your startup script to call `Lidarr` instead of `mono --debug Lidarr.exe`
+**Back-Up your existing configuration** before the next step.
+
+**Delete your existing binaries** and replace with the contents of the `.tar.gz` you just downloaded.  **DO NOT JUST EXTRACT THE DOWNLOAD OVER THE TOP OF YOUR EXISTING BINARIES, YOU MUST DELETE THE OLD ONES FIRST**.  Update your startup script to call `Lidarr` instead of `mono --debug Lidarr.exe`
+
+If Lidarr doesn't start make sure you have the dependencies listed [here](https://docs.microsoft.com/en-us/dotnet/core/install/dependencies?tabs=netcore31&pivots=os-linux) installed.
 
 #### fpcalc missing