Fix query language examples link.
Fix query language examples link.

jmptrader/docs,jimmidyson/docs,chosenken/docs,tcolgate/docs,ddfreyne/prometheus-docs,ddfreyne/prometheus-docs,du2016/prometheus-docs,prometheus/docs,jmptrader/docs,fabxc/docs,evanphx/docs,prometheus/docs,dato/prometheus-docs,pdbogen/docs,chosenken/docs,brian-brazil/docs,Cepave/openfalcon.io,bluecmd/prometheus-docs,vic3lord/docs,tcolgate/docs,pdbogen/docs,Cepave/openfalcon.io,du2016/prometheus-docs,dln/docs,fabxc/docs,open-falcon/open-falcon.github.io,bluecmd/prometheus-docs,dln/docs,evanphx/docs,chosenken/docs,open-falcon/open-falcon.github.io,ddfreyne/prometheus-docs,evanphx/docs,jmptrader/docs,jimmidyson/docs,du2016/prometheus-docs,pdbogen/docs,ChaoticMind/docs,brian-brazil/docs,prometheus/docs,ChaoticMind/docs,Cepave/openfalcon.io,bluecmd/prometheus-docs,fabxc/docs,dato/prometheus-docs,vic3lord/docs,chosenken/docs,tcolgate/docs,ChaoticMind/docs,jimmidyson/docs,dln/docs,dato/prometheus-docs,open-falcon/open-falcon.github.io,ddfreyne/prometheus-docs,vic3lord/docs