servo: Merge #5097 - Add explicit mention of mach run for Running (from servo:Manishearth-patch-1); r=saneyuki

Source-Repo: https://github.com/servo/servo
Source-Revision: 4c04d520491d8d378ed6718e08d340eff933dc0e

servo/README.md

@@ -98,6 +98,9 @@ cp servobuild.example .servobuild
 
 ## Running
 
+Use `./mach run [url]` to run Servo.
+
+
 ### Commandline Arguments
 
 - `-p INTERVAL` turns on the profiler and dumps info to the console every