Updated README

README.md

@@ -5,4 +5,20 @@ gerber-tools
 
 Tools to handle Gerber and Excellon files in Python.
 
+Example:
+
+    import gerber
+    from gerber.render import GerberSvgContext
+
+    # Read gerber and Excellon files
+    top_copper = gerber.read('example.GTL')
+    nc_drill = gerber.read('example.txt')
+
+    # Rendering context
+    ctx = GerberSvgContext
+
+    # Create SVG image
+    top_copper.render('top_copper.svg', ctx)
+    nc_drill.render('composite.svg', ctx)
+