added my the code example for image segmentation

[mb16biswas]

trafficstars

Hi,

I have added my code example for multiclass image segmentation using an Ensemble approach of modified U-nets. I am eagerly waiting for the response.

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[mb16biswas]

Hi, I have updated the links, kindly check and confirm.

[divyashreepathihalli]

Hi @mb16biswas!sorry this PR has slipped through the cracks. Since Keras has changed from tf backend to multi-backend. the PR changes would no longer be applicable. I will close this out. please feel free to open a new one. Thank you!