Update SetupComputer20.04

SetupComputer20.04.md

@@ -15,7 +15,7 @@ sudo update-alternatives --install /usr/bin/gcc gcc  /usr/bin/gcc-8 1
 cd
 mkdir work
 cd work
-svn co https://svn.semafor.ch/stxm/trunk stxm
+git clone https://gitlab.psi.ch/microspectro/pixelator.git stxm
 ```
 
 - Compile Epics
@@ -212,4 +212,4 @@ edit /etc/security/limits.conf
    add at the end:
 control         soft    memlock         200000
 control         hard    memlock         200000
-```
+```