change tar.gz build url
@ -155,7 +155,7 @@ First get the code from [github](http://github.com/trapexit/mergerfs).
```
$ git clone https://github.com/trapexit/mergerfs.git
$ # or
$ wget https://github.com/trapexit/mergerfs/archive/master.zip
$ wget https://github.com/trapexit/mergerfs/releases/download/<ver>/mergerfs-<ver>.tar.gz
#### Debian / Ubuntu