Issue #58: Update README.md

Signed-off-by: RichardHeise <rfhf19@inf.ufpr.br>

README.md

@@ -4,6 +4,25 @@
 
 RESTful API used to manage and answer forms.
 
+Backend installation instructions:
+
+- Be sure your system is 64-bits or Docker will not work.
+- Git clone this repo, doesn't matter if it's done with SSH or HTTPS.
+- Use $~ git submodule update --init --recursive command to pull the database submodule inside the project.
+- Use $~ sudo apt install docker.io command to install Docker.
+- Use $~ sudo apt install docker-compose command to install docker-compose.
+- Use $~ mv .env.example .env command to set the env file.
+- Use $~ cd config/ command and then $~ mv config.env.example config.env commando to set config env.
+- Use $~ cp config.env test.env to copy the env to the test env.
+- Use $~ vim(vi) test.env and change the port to 3001, for example (optional so tests don't break).
+- Use $~ sudo docker-compose up --build to run docker.
+- If everything worked out good there'll be a message "server listening on port 3000".
+- Open a new terminal, go to the form-creator-api directory and execute $~ sudo docker exec -it formcreatorapi_form-creator-api-backend_1 bash.
+- Now, inside this backend docker, run $~ yarn run test.
+- Use $~ sudo docker exec -it form-postgres bash, then type psql -U postgres on this docker that just opened.
+- You are, now, inside postgreSQL, you can use \dt command to list all tables, be sure you have 13.
+- That's it, backend installed.
+
 ## Objective
 
 The main objective of this project is create a *Web Service* which allows users