chore(readme): update readme

updating the readme to help with contributions:

Gifcap

Record your screen into an animated GIF, all you need is a browser! [![License][1]][2] [![Github Repo Size][3]][4] [![Github Contributors][5]][6] [![Github Last Commit][7]][8] [![Build][11]][12]

Overview

Tech Stack

Node - JavaScript runtime environment

Included Tooling

TypeScript - Type checking
Prettier - Code formatting

Installation

git clone https://github.com/joaomoreno/gifcap.git

cd into your project directory and run npm i.
Run npm run build and npm run start to start the development server.
Open your browser to http://localhost:5000 to see the included example code running.

Commands

npm run dev - Starts the development server.
npm run build - Builds a compiled version of your app.

Features:

No installations, no bloatware, no updates: this works in any modern browser, including Google Chrome, Firefox, Edge and Safari;
No server side, everything is 100% client-side only. All data stays in your machine, nothing gets uploaded to any server, the entire application is made of static files;
PWA support makes it easy to add gifcap to your OS list of applications;
Blazing fast GIF rendering powered by WASM, libimagequant and gifsicle;
Highly optimized GIF file sizes, thanks to frame deduplication, boundary delta detection and lossy encoding;
Entire screen recordings, or selection of single window;
Intuitive trimming UI
Easy cropping via visual drag-and-drop

joaomoreno / gifcap

chore(readme): update readme #82