Prepare publishing

+# Pdf creation library for dart / flutter
+
+Example:
+```dart
+final pdf = new PDFDocument();
+final page = new PDFPage(pdf, pageFormat: new PDFPageFormat(PDFPageFormat.LETTER));
+final g = page.getGraphics();
+final font = new PDFFont(pdf);
+
+g.setColor(new PDFColor(0.0, 1.0, 1.0));
+g.drawRect(50.0, 30.0, 100.0, 50.0);
+g.fillPath();
+
+g.setColor(new PDFColor(0.3, 0.3, 0.3));
+g.drawString(font, 12.0, "Hello World!", 50.0, 300.0);
+
+var file = new File('file.pdf');
+file.writeAsBytesSync(pdf.save());
+```

@@ -4,9 +4,13 @@ description: A pdf producer for Dart
 homepage: https://github.com/davbfr/dart_pdf
 version: 1.0.0
 
+environment:
+  sdk: ">=1.8.0 <2.0.0"
+
 dependencies:
+  meta: "^1.1.5"
   ttf_parser: "^1.0.0"
-  vector_math:
+  vector_math: "^2.0.7"
 
 dev_dependencies:
-  test: "^0.12.32+1"
\ No newline at end of file
+  test: any

+import 'dart:io';
+
+import 'package:pdf/pdf.dart';
+
+void main() {
+  final pdf = new PDFDocument();
+  final page = new PDFPage(pdf, pageFormat: new PDFPageFormat(PDFPageFormat.LETTER));
+  final g = page.getGraphics();
+  final font = new PDFFont(pdf);
+
+  g.setColor(new PDFColor(0.0, 1.0, 1.0));
+  g.drawRect(50.0, 30.0, 100.0, 50.0);
+  g.fillPath();
+
+  g.setColor(new PDFColor(0.3, 0.3, 0.3));
+  g.drawString(font, 12.0, "Hello World!", 50.0, 300.0);
+
+  var file = new File('file.pdf');
+  file.writeAsBytesSync(pdf.save());
+}