Merge branch 'anthony-master-patch-01012' into 'master'

Update Readme.md

See merge request !1

.env.sample

 COMPOSE_FILE=docker-compose.yml:ports.yml
 HOST=0.0.0.0
-PORT=5000
+FLASK_PORT=5000
 MYSQL_USER=mirador_backend
 MYSQL_PASSWORD=randompassword
 MYSQL_ROOT_PASSWORD=otherrandompassword

Readme.md

 # Mirador backend
 
+## Get the project 
+
+`git clone gitlab@gitlab.tetras-libre.fr:iiif/backend.git && cd backend`
+
 ## Install and run
 
 ### local
 
-
 #### Requirements
 
 + virtualenv (optionnal)
@@ -12,11 +15,14 @@
 
 #### Dev mode
 
-1. Optionnal create a virtual env `virtualenv venv && . venv/bin/activate`
+1. Optionnal create a virtual env : 
+    - `virtualenv venv && . venv/bin/activate`
+    - OR `python3 -m venv venv  && . venv/bin/activate`
+
 2. Install dependencies `pip install -e .`
 3. `cp .env.sample .env` and edit `.env` file to suit your needs
 4. Run `flask --debug --app Mirador_backend.app run`
-
+5. Go to [http://localhost:5000/mirador_resource](http://localhost:5000/mirador_resource) 
 #### Production mode
 
 **TODO**
@@ -40,6 +46,8 @@ cp .env.sample .env
 docker-compose up
 ```
 
+Go to [http://localhost:5000/mirador_resource](http://localhost:5000/mirador_resource) 
+
 #### Test
 
 ```