Update README.md

Author: hovnatan

README.md

@@ -24,8 +24,8 @@ pip install superannotate
 for COCO annotation format converters support also need to install:
 
 ```console
-pip install 'git+https://github.com/cocodataset/panopticapi.git'
-pip install 'git+https://github.com/philferriere/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI'
+pip install "git+https://github.com/cocodataset/panopticapi.git"
+pip install "git+https://github.com/philferriere/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI"
 ```