chore(readme): improve readme

README.md

@@ -3,13 +3,14 @@ Embark-Solc
 
 Plugin for [Embark](https://github.com/embark-framework/embark) to compile contracts using solc
 
-Installation
-======
+## Installation
+
 
 In your embark dapp directory:
+
 ```npm install embark-solc --save```
 
-then add embark-solc to the plugins section in ```embark.json```:
+then add embark-solc to the plugins section in `embark.json`:
 
 ```Json
   "plugins": {
@@ -21,9 +22,8 @@ then add embark-solc to the plugins section in ```embark.json```:
 
 - `outputBinary` can be specified to generate a .bin file that contains the binary of the contracts in hex. Default value is `false`.
 
-Requirements
-======
+## Requirements
 
 - Embark 3.0.0 or higher
-- Solc installed and available globally on your machine
+- [Solc](https://github.com/ethereum/solidity/releases) installed and available globally on your machine (h)