Update README.md

README.md

@@ -7,6 +7,22 @@ which implements the [Generic JSON RPC](https://github.com/ethereum/wiki/wiki/Ge
 
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+## Requirements
+
+* Node.js
+* npm
+* gulp (build)
+* mocha (tests)
+
+```bash
+sudo apt-get update
+sudo apt-get install nodejs
+sudo apt-get install npm
+sudo apt-get install nodejs-legacy
+sudo npm install -g gulp
+sudo npm install -g mocha
+```
+
 ## Installation
 
 ### Node.js