Update Dockerfile

Dockerfile

@@ -24,7 +24,8 @@ RUN pip install -r requirements.txt
 RUN mkdir examples && \
     cd examples && \
     for i in `seq 1 12`; do wget "https://raw.githubusercontent.com/memory-overflow/standard-ellipse-detection/master/images/test$i.jpg"; done && \
-    for file in 13.jpg 27.jpg 35.jpg 43.jpg 666.jpg 666_negative.jpg 666_positive.jpg different-polarity-detection_all.jpg im9933.jpg; do wget "https://github.com/AlanLuSun/High-quality-ellipse-detection/blob/master/pics/$file"; done
+    for file in 13.jpg 27.jpg 35.jpg 43.jpg 666.jpg 666_negative.jpg 666_positive.jpg different-polarity-detection_all.jpg im9933.jpg; \
+      do wget "https://raw.githubusercontent.com/AlanLuSun/High-quality-ellipse-detection/master/pics/$file"; done
 
 COPY test.py /opt/build/AAMED/python/
 RUN cd /opt/build/AAMED/python && python test.py