Fix readme polly picture
Fix readme polly picture

dvonthenen/polly,emccode/polly,cantbewong/polly,cantbewong/polly,emccode/polly,cantbewong/polly,dvonthenen/polly,dvonthenen/polly,dvonthenen/polly,emccode/polly,cantbewong/polly,emccode/polly