Readme improvements (#67)

* Remove $ from README

* Small README improvements

* Add license badge

README.md

@@ -1,33 +1,34 @@
-
+ [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
 # About
 This project aims to create simple songbook for storing, managing and viewing songs with their respective chords. The songs are loaded once and then all filtering/searching happens on the client which means it is usable even in conditions with low or almost no internet access as it can be preloaded. The site can also generate PDF files from selected songs for offline viewing or printing.
 
 # Getting Started
 
-First clone the repository from Github and switch to the new directory:
+First clone the repository from GitHub and switch to the new directory:
 
-    $ git clone https://github.com/pehala/song-book.git
-    $ cd song-book
+    git clone https://github.com/pehala/song-book.git
+    cd song-book
 
 Install pipenv and dependencies
 
-    $ python -m pip install poetry
-    $ poetry install 
+    python -m pip install poetry
+    poetry install 
 
 Then simply initialize the website:
 
-    $ make init
+    make init
 
 You can now run the development server:
 
-    $ make run
+    make run
 
 ## FAQ
 
-1. pipenv install throws 
+1. `poetry install` throws 
 
        ERROR: Couldn't install package: rcssmin
        Package installation failed...
 
-    Install apt-get install python3-dev (or yum install python3-devel etc.)
+    Install `python3-dev` for Debian-based distro or `python3-devel` for RHEL-based