Added readme

README.md

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+# RTSP-Stream
+
+A quick and dirty library to stream images or from a local RTSP stream
+
+## Installation
+
+1. Download FFMPEG
+
+1. Clone library into a directory with `git clone ssh://git@thebword.ddns.net:3122/watsonb8/rtsp-stream.git`
+
+1. Build library with `npm run build`
+
+1. Install library into project with `npm install <path_to_library>`
+
+## Sample
+
+```
+    import { Rtsp } from "rtsp-stream/lib/rtsp"
+
+    const rtsp = new Rtsp("rtsp://example_username:example_password@192.168.1.1/live", {
+        quality: 3,
+        resolution: "1920x1080",
+        codec: "libx264",
+    })
+
+    rtsp.on("data", (data: Buffer) => {
+        fs.writeFile("path_to_output/file.jpeg", data, 'base64', (err) => {
+            if(err){
+                console.log(err)
+            }
+        });
+    })
+```