Updated FAQ (markdown)

FAQ.md

@@ -6,6 +6,7 @@ Material Deck is a big and complex module, and requires some setup. If you have
 * [How do I know if my server is secure?](https://github.com/CDeenen/MaterialDeck/wiki/FAQ#how-do-i-know-if-my-server-is-secure)
 * [I get the error that Material Deck cannot connect to Material Server](https://github.com/CDeenen/MaterialDeck/wiki/FAQ#i-get-the-error-that-material-deck-cannot-connect-to-material-server)
 * [Does Material Deck work on Windows/OSX/Linus?](https://github.com/CDeenen/MaterialDeck/wiki/FAQ#does-material-deck-work-on-windowsosxlinus)
+* [Material Server won't run and/or gives an error](
 
 # Frequently Asked Questions
 ## I've installed the module, server and Stream Deck plugin, why doesn't it do anything?
@@ -39,4 +40,10 @@ As far as I know, there are no reported issues with Windows 10
 #### OSX
 Some users have reported issues. [This](https://github.com/CDeenen/MaterialDeck/issues/43) might solve your issue, otherwise, please contact me.
 #### Linux
-Elgato hasn't released an official Stream Deck application for Linux, however there is [streamdeck_ui](https://timothycrosley.com/project-7-streamdeck_ui). There is at least one user who has succesfully used that.
+Elgato hasn't released an official Stream Deck application for Linux, however there is [streamdeck_ui](https://timothycrosley.com/project-7-streamdeck_ui). There is at least one user who has succesfully used that.
+
+## Material Server won't run and/or gives an error
+This could be due to various reasons.<br>
+Please make sure you've downloaded and installed all the [prerequisites](https://github.com/CDeenen/MaterialServer/blob/master/README.md#prerequisites)<br>
+If that didn't solve the issue, you can try running the server from the [source](https://github.com/CDeenen/MaterialServer/blob/master/README.md#running-from-the-source).<br>
+Please also contact me, so I can try to fix the issue in later releases.