Update get-player-by-gamertag.md
Update get-player-by-gamertag.md

Anonymize the JSON body.
ankodu/nether,vflorusso/nether,navalev/nether,navalev/nether,MicrosoftDX/nether,brentstineman/nether,ankodu/nether,ankodu/nether,ankodu/nether,brentstineman/nether,navalev/nether,navalev/nether,stuartleeks/nether,brentstineman/nether,brentstineman/nether,vflorusso/nether,stuartleeks/nether,vflorusso/nether,stuartleeks/nether,stuartleeks/nether,stuartleeks/nether,oliviak/nether,vflorusso/nether,vflorusso/nether,krist00fer/nether,brentstineman/nether