Merge pull request #245 from Un1Gfn/patch-1

"Firefly III scripted installer" link 404 - remove it

Author: JC5

docs/docs/how-to/firefly-iii/installation/self-managed.md

@@ -19,9 +19,8 @@ In case you want to use one of the languages that Firefly III is equipped with,
 Several users have created specific guides for their OS and database combination. 
 
 1. [Firefly III in Ubuntu 20.04 and proxmox](https://gist.github.com/Engr-AllanG/34e77a08e1482284763fff429cdd92fa)
-2. [Firefly III scripted installer](https://github.com/runlevel-4/firefly-iii-automation)
-3. [Firefly III Gulp orchestration scripts](https://github.com/sidyes/firefly-iii-gulp)
-4. [Firefly III on FreeBSD](https://www.davidschlachter.com/misc/firefly-iii-freebsd)
+2. [Firefly III Gulp orchestration scripts](https://github.com/sidyes/firefly-iii-gulp)
+3. [Firefly III on FreeBSD](https://www.davidschlachter.com/misc/firefly-iii-freebsd)
 
 ## Preparing your server