Fix newbie ticket link in docs.
Fix newbie ticket link in docs.

Reviewed at https://reviews.apache.org/r/30102/

thinker0/aurora,kidaa/aurora,mschenck/aurora,protochron/aurora,wfarner/aurora,apache/aurora,crashlytics/aurora,crashlytics/aurora,rdelval/aurora,thinker0/aurora,shahankhatch/aurora,medallia/aurora,shahankhatch/aurora,mschenck/aurora,kidaa/aurora,kidaa/aurora,protochron/aurora,rosmo/aurora,apache/aurora,mschenck/aurora,apache/aurora,crashlytics/aurora,wfarner/aurora,crashlytics/aurora,shahankhatch/aurora,rdelval/aurora,wfarner/aurora,protochron/aurora,rdelval/aurora,shahankhatch/aurora,rdelval/aurora,rdelval/aurora,medallia/aurora,kidaa/aurora,kidaa/aurora,protochron/aurora,thinker0/aurora,medallia/aurora,thinker0/aurora,rosmo/aurora,apache/aurora,wfarner/aurora,thinker0/aurora,medallia/aurora,shahankhatch/aurora,thinker0/aurora,protochron/aurora,rosmo/aurora,rosmo/aurora,rosmo/aurora,apache/aurora,rdelval/aurora,mschenck/aurora,wfarner/aurora,wfarner/aurora,mschenck/aurora,kidaa/aurora,mschenck/aurora,crashlytics/aurora,rosmo/aurora,shahankhatch/aurora,medallia/aurora,medallia/aurora,protochron/aurora,crashlytics/aurora,apache/aurora