Bump version and fix metadata

src/ImageSharp.Drawing/ImageSharp.Drawing.csproj

@@ -1,15 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Description>A cross-platform library for the processing of image files; written in C#</Description>
+    <Description>An extension to ImageSharp that allows the drawing of images, paths, and text.</Description>
     <AssemblyTitle>ImageSharp.Drawing</AssemblyTitle>
-    <VersionPrefix>1.0.0-alpha2</VersionPrefix>
+    <VersionPrefix>1.0.0-alpha3</VersionPrefix>
     <Authors>James Jackson-South and contributors</Authors>
     <TargetFramework>netstandard1.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <AssemblyName>ImageSharp.Drawing</AssemblyName>
     <PackageId>ImageSharp.Drawing</PackageId>
-    <PackageTags>Image Resize Crop Gif Jpg Jpeg Bitmap Png Core</PackageTags>
+    <PackageTags>Image Draw Shape Path Font</PackageTags>
     <PackageIconUrl>https://raw.githubusercontent.com/JimBobSquarePants/ImageSharp/master/build/icons/imagesharp-logo-128.png</PackageIconUrl>
     <PackageProjectUrl>https://github.com/JimBobSquarePants/ImageSharp</PackageProjectUrl>
     <PackageLicenseUrl>http://www.apache.org/licenses/LICENSE-2.0</PackageLicenseUrl>

src/ImageSharp/ImageSharp.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Description>A cross-platform library for the processing of image files; written in C#</Description>
     <AssemblyTitle>ImageSharp</AssemblyTitle>
-    <VersionPrefix>1.0.0-alpha2</VersionPrefix>
+    <VersionPrefix>1.0.0-alpha3</VersionPrefix>
     <Authors>James Jackson-South and contributors</Authors>
     <TargetFrameworks>netstandard1.3;netstandard1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>