Update 0200-12-18-more-about-josm.md
Update 0200-12-18-more-about-josm.md

remove references to GPS and Field Papers documents which are being moved to the mobile mapping section
hotosm/learnosm,jmarlena/learnosm,Nick-Tallguy/Nick-Tallguy.github.io,Nick-Tallguy/Nick-Tallguy.github.io,feyeandal/test,jmarlena/learnosm,jmarlena/learnosm,furaidochikin/learnosm,Anwaario/Nick-Tallguy.github.io,Anwaario/Nick-Tallguy.github.io,Nick-Tallguy/Nick-Tallguy.github.io,Nick-Tallguy/Nick-Tallguy.github.io,hotosm/learnosm,Anwaario/Nick-Tallguy.github.io,Nick-Tallguy/Nick-Tallguy.github.io,hotosm/learnosm,furaidochikin/learnosm,hotosm/learnosm,jmarlena/learnosm,feyeandal/test,feyeandal/test,Anwaario/Nick-Tallguy.github.io,furaidochikin/learnosm,furaidochikin/learnosm,feyeandal/test