Add deps installation instruction to README

readme.md

@@ -7,6 +7,7 @@ Calibre Web is a web app providing a clean interface for browsing, reading and d
 ![screenshot](https://raw.githubusercontent.com/janeczku/docker-calibre-web/master/screenshot.png)
 
 ## Features
+
 - Bootstrap 3 HTML5 interface
 - User management
 - Admin interface
@@ -26,9 +27,10 @@ Calibre Web is a web app providing a clean interface for browsing, reading and d
 
 ## Quick start
 
-1. Rename `config.ini.example` to `config.ini` and set `DB_ROOT` to the path of the folder where your Calibre library (metadata.db) lives
-2. Execute the command: `python cps.py`
-3. Point your browser to `http://localhost:8083` or `http://localhost:8083/opds` for the OPDS catalog 
+1. Install required dependencies by executing `pip install -r requirements.txt`
+2. Rename `config.ini.example` to `config.ini` and set `DB_ROOT` to the path of the folder where your Calibre library (metadata.db) lives
+3. Execute the command: `python cps.py`
+4. Point your browser to `http://localhost:8083` or `http://localhost:8083/opds` for the OPDS catalog
 
 **Default admin login:**
 *Username:* admin