[DOC] Improve README
[DOC] Improve README

xf-/meshviewer-1,hopglass/ffrgb-meshviewer,Freifunk-Troisdorf/meshviewer,rubo77/meshviewer-1,rubo77/meshviewer-1,Freifunk-Rhein-Neckar/meshviewer,ffrgb/meshviewer,FreifunkBremen/meshviewer-ffrgb,FreifunkMD/Meshviewer,Freifunk-Rhein-Neckar/meshviewer,hopglass/ffrgb-meshviewer,FreifunkBremen/meshviewer-ffrgb,xf-/meshviewer-1,ffrgb/meshviewer,Freifunk-Rhein-Neckar/meshviewer,freifunkMUC/meshviewer,freifunkMUC/meshviewer,Freifunk-Troisdorf/meshviewer,FreifunkMD/Meshviewer