feat: Improve README

README.md

@@ -35,6 +35,29 @@ npm run dev
 2. Run `nvm use`
 3. That's it!
 
+### Guide to setup postgres DB and Redis from scratch
+
+If you can access your user and you know how to create a DB, **you can ignore that section**.
+
+If you don't know how to access your postgres user or DB:
+1. Install Postgres.app for all existing postgres version [here](https://postgresapp.com/downloads.html) (it will install all needed Posgres versions).
+2. Open the app, in the interface click on the "+" on the bottom left and add a new V11 server.
+3. Click "Initialize" button from the interface.
+4. If you have error "Post already in use", try to close apps that are using that port. Otherwise click on the server V11 in the interface and change port to 5433
+5. Connect to default DB user using "psql -h localhost -p 5432 -U postgres -d postgres". If you changed port on the previos step, update the port
+6. Now run following commands to setup a user (update dumb values with you own):
+  - "CREATE USER `myuser` WITH PASSWORD `'secretpassword'`;"
+  - ALTER ROLE `myuser` SUPERUSER;
+  - CREATE DATABASE `db-name`; (db-name will be used for the app)
+  - \d (to close the connection)
+  - psql -h localhost -p 5432 -U `myuser` -d `db-name`
+7. That's it.
+
+To install Redis (if you don't have one):
+1. Install Redis via `brew install redis`
+2. Then `brew services start redis`
+3. You're done :)
+
 ### Current DB schema
 
 ![budget-tracker-schema](https://user-images.githubusercontent.com/12257282/147393125-de1c8815-023e-49d4-b337-20cfaea06552.png)