[SL.Core] Update logo and readme.

README.md

@@ -1,6 +1,11 @@
-# SixLabers.Core
+<h1 align="center">
 
-**SixLabors.Core** provides classes for use across SixLabors libraries.
+<img src="https://raw.githubusercontent.com/SixLabors/Branding/master/icons/core/sixlabors.core.512.png" alt="SixLabors.Core" width="256"/>
+<br/>
+SixLabors.Core
+</h1>
+
+<div align="center">
 
 [![Build status](https://ci.appveyor.com/api/projects/status/j1hvc99493b0jk3x/branch/develop?svg=true)](https://ci.appveyor.com/project/six-labors/core/branch/develop)
 [![codecov](https://codecov.io/gh/SixLabors/Core/branch/develop/graph/badge.svg)](https://codecov.io/gh/SixLabors/Core)
@@ -8,4 +13,7 @@
 
 [![GitHub issues](https://img.shields.io/github/issues/SixLabors/Core.svg)](https://github.com/SixLabors/Core/issues)
 [![GitHub stars](https://img.shields.io/github/stars/SixLabors/Core.svg)](https://github.com/SixLabors/Core/stargazers)
-[![GitHub forks](https://img.shields.io/github/forks/SixLabors/Core.svg)](https://github.com/SixLabors/Core/network)
+[![GitHub forks](https://img.shields.io/github/forks/SixLabors/Core.svg)](https://github.com/SixLabors/Core/network)
+</div>
+
+**SixLabors.Core** provides core primitives and helper methods for use across SixLabors libraries.

src/SixLabors.Core/SixLabors.Core.csproj

@@ -11,7 +11,7 @@
         <AssemblyName>SixLabors.Core</AssemblyName>
         <PackageId>SixLabors.Core</PackageId>
         <PackageTags>rectangle;point;size,primitives</PackageTags>
-        <PackageIconUrl>https://raw.githubusercontent.com/SixLabors/Home/master/logo.png</PackageIconUrl>
+        <PackageIconUrl>https://raw.githubusercontent.com/SixLabors/Branding/master/icons/core/sixlabors.core.128.png</PackageIconUrl>
         <PackageProjectUrl>https://github.com/SixLabors/Core</PackageProjectUrl>
         <PackageLicenseUrl>http://www.apache.org/licenses/LICENSE-2.0</PackageLicenseUrl>
         <RepositoryType>git</RepositoryType>