Created Docker developement environment (markdown)

Docker-developement-environment.md

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+# Create the python environment
+
+In that how to we use the last python 3 version with alpine distribution but you can use another docker image based on python.
+
+```
+docker run --rm -it --name searx -v $(pwd):/ws -w /ws python:3-alpine sh                                               
+apk add build-base libffi-dev libxml2-dev libxslt-dev openssl-dev
+sed -i 's/127.0.0.1/0.0.0.0/g' searx/settings.yml                                                      
+python searx/webapp.py 
+```
+
+Then go to http://searx.docker:8888 to load the searx website. Where **searx.docker** is the IP of the container, you can run the following command to get it `docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' searx`.