removed GPS link

Author: Jing Liu

source/direction/focused/README.md

@@ -3,7 +3,7 @@
 
 # Focused Beam
 
-[GPS][] provides the following commands to focus one or multiple beams to a point:
+GPS provides the following commands to focus one or multiple beams to a point:
 
 ~~~sh
 /gps/ang/type focused
@@ -12,9 +12,8 @@
 
 Ref.: [Geant4 User Guide for Application Developers](https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/GettingStarted/generalParticleSource.html?highlight=gps#source-direction-and-angular-distribution).
 
-A YouTube [short][] is created to demonstrate its effect in a fun way. Geometries are defined in [stars.tg][]. [GPS][] commands are in [gears.mac][]. [tsg.mac][] and [phi.mac][] are used to create a animated gif.
+A YouTube [short][] is created to demonstrate its effect in a fun way. Geometries are defined in [stars.tg][]. GPS commands are in [gears.mac][]. [tsg.mac][] and [phi.mac][] are used to create a animated gif.
 
-[GPS]: ../../..
 [short]: https://youtube.com/shorts/negc7_p_l_I
 [stars.tg]: https://github.com/jintonic/geant4/tree/master/source/direction/focused/stars.tg
 [gears.mac]: https://github.com/jintonic/geant4/tree/master/source/direction/focused/gears.mac