Update the installation process. (#502)

* Add new section "Projects using maskrcnn-benchmark".

* Update README.md

update the format.

* Update README.md

* Add coco_2017_train and coco_2017_val

* Update README.md

Add the instructions about COCO_2017

* Update the pip install.
Adding tqdm which is used in engine/inference.py

INSTALL.md

@@ -24,7 +24,7 @@ conda activate maskrcnn_benchmark
 conda install ipython
 
 # maskrcnn_benchmark and coco api dependencies
-pip install ninja yacs cython matplotlib
+pip install -r requirements.txt
 
 # follow PyTorch installation in https://pytorch.org/get-started/locally/
 # we give the instructions for CUDA 9.0

requirements.txt

+ninja
+yacs
+cython
+matplotlib
+tqdm