Fix link in README
Fix link in README

zenderol/tech-radar,thoughtworks/build-your-own-radar,MaximilienM/wavestone-ida-radar,thoughtworks/build-your-own-radar,thomasfranz/techradar,outware-mobile/tech-radar,chrisotherwise/techradar,MaximilienM/wavestone-ida-radar,chrisotherwise/techradar,zenderol/tech-radar,outware-mobile/tech-radar,trecenti/tech-radar,glauco/tech-radar,thoughtworks/build-your-own-radar