Failure cases email added

Author: Gines

README.md

@@ -86,9 +86,10 @@ The pose estimation work is based on the C++ code from [the ECCV 2016 demo](http
     3. [OpenPose Library](#openpose-library)
 4. [Output](#output)
 5. [Speed Up Openpose And Benchmark](#speed-up-openpose-and-benchmark)
-6. [Send Us Your Feedback!](#send-us-your-feedback)
-7. [Citation](#citation)
-8. [Other Contributors](#other-contributors)
+6. [Send Us Failure Cases!](#send-us-failure-cases)
+7. [Send Us Your Feedback!](#send-us-your-feedback)
+8. [Citation](#citation)
+9. [Other Contributors](#other-contributors)
 
 
 
@@ -155,6 +156,11 @@ Check the OpenPose Benchmark and some hints to speed up OpenPose on [doc/install
 
 
 
+## Send Us Failure Cases!
+If you find videos or images where OpenPose does not seems to work well, feel free to send them to [email protected], we will use them to improve the quality of the algorithm. Thanks!
+
+
+
 ## Send Us Your Feedback!
 Our library is open source for research purposes, and we want to continuously improve it! So please, let us know if...