Added README.md

Author: mehulmpt

README.md

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+# ReactJS Graphs
+A simple react component to draw branched graphs consisting of vertices and edges.
+
+# How To Use?
+
+1. Install using `npm install reactjs-graphs --save`
+2. Import in your react project: `import Graph from 'reactjs-graphs'`
+3. Use directly in render function. Here's an example explaining all possible props you can pass:
+
+```jsx
+<Graph
+	vertices={[ // all possible edges
+		"HTML",
+		"CSS",
+		"jQuery",
+		"JavaScript",
+		"PHP",
+		"Python",
+		"Perl",
+		"Ruby"
+	]}
+	edges={[ // edges between nodes. Please draw a graph on paper first and see for yourself how the edges flow to place a suitable array value here
+		["HTML","CSS"],
+		["CSS", "jQuery"],
+		["jQuery","JavaScript"],
+		["jQuery", "PHP"],
+		["PHP", "Python"],
+		["Python", "Perl"],
+		["Python", "Ruby"]
+	]}
+	orientation="horizontal" // orientation of graph (whether horizontal or vertical)
+	width={window.innerWidth} // width of graph
+	height={window.innerHeight} // height of graph
+	vertexStroke="#df6766" // color of border of vertices
+	edgeStroke="#ebb2b2" // color of edge
+	edgeWidth={2} // thickness of edge
+	vertexRadius={10} // radius of vertex -> bigger the radius, larger the vertex size
+/>
+```
+
+4. The example above would render the following graph:
+
+![Demo](https://raw.githubusercontent.com/codedamn/reactjs-graphs/master/graph.png)