[DOC] Update README
[DOC] Update README

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