Make image sizing consistent using html and update some links

Author: sebmerry

README.md

@@ -1,23 +1,26 @@
 
 # DirectX-Graphics-Samples
-This repo contains the DirectX 12 Graphics samples that demonstrate how to build graphics intensive applications for Windows 10.
+<img src="Assets/DirectX12Ultimate_small.png" alt="DirectX 12 Ultimate" height="200">
 
-![DirectX 12 Ultimate](Assets/DirectX12Ultimate_small.png)
+This repo contains the DirectX 12 Graphics samples that demonstrate how to build graphics intensive applications for Windows 10.
 
-We invite you to join us at our [discord server](http://discord.gg/directx). See our [YouTube channel](https://www.youtube.com/MicrosoftDirectX12andGraphicsEducation) for tutorials, our [spec repo](https://microsoft.github.io/DirectX-Specs/) for engineering specs of our features and [devblogs](https://devblogs.microsoft.com/directx/) for blog posts. Follow us on Twitter [@DirectX12](https://twitter.com/directx12) for the latest! See the Related Links section for our full list of DX12-related links.
+We invite you to join us at our [discord server](http://discord.gg/directx). See our [YouTube channel](https://www.youtube.com/MicrosoftDirectX12andGraphicsEducation) for tutorials, our [spec repo](https://microsoft.github.io/DirectX-Specs/) for engineering specs of our features and [devblogs](https://devblogs.microsoft.com/directx/) for blog posts. Follow us on Twitter [@DirectX12](https://twitter.com/directx12) for the latest! See the [related links](##-Related-links) section for our full list of DX12-related links.
 
 ## API Samples
 In the Samples directory, you will find samples that attempt to break off specific features and specific usage scenarios into bite-sized chunks. For example, the ExecuteIndirect sample will show you just enough about execute indirect to get started with that feature without diving too deep into multiengine whereas the nBodyGravity sample will delve into multiengine without touching on the execute indirect feature etc. By doing this, we hope to make it easier to get started with DirectX 12.
 
-DirectX 12 Ultimate samples:
+### DirectX 12 Ultimate samples
 1. [D3D12 Mesh Shaders](Samples/Desktop/D3D12MeshShaders/readme.md): This sample demonstrates how Mesh shaders can be used to increase the flexibility and performance of the geometry pipeline.
-![D3D12 Meshlet Render Preview](Samples/Desktop/D3D12MeshShaders/src/MeshletRender/D3D12MeshletRender.png)
+    
+    <img src="Samples/Desktop/D3D12MeshShaders/src/MeshletRender/D3D12MeshletRender.png" alt="D3D12 Meshlet Render preview" height="200"> 
 
-2. [D3D12 Variable Rate Shading](Samples/Desktop/D3D12VariableRateShading/readme.md): This sample demonstrates how shading rate can be reduced with little or no reduction in visual quality, leading to “free” performance.
-![Variable Rate Shading GUI](Samples/Desktop/D3D12VariableRateShading/src/Screenshot_small.png)
+1. [D3D12 Variable Rate Shading](Samples/Desktop/D3D12VariableRateShading/readme.md): This sample demonstrates how shading rate can be reduced with little or no reduction in visual quality, leading to “free” performance.
+    
+    <img src="Samples/Desktop/D3D12VariableRateShading/src/Screenshot_small.png" alt="D3D12 Variable Rate Shading GUI" height="200"> 
 
-3. [D3D12 Raytracing](Samples/Desktop/D3D12Raytracing/readme.md): This sample demonstrates how DirectX Raytracing (DXR) brings a new level of graphics realism to video games, previously only achievable in the movie industry.
-![D3D12 Raytracing Real-Time Denoised Ambient Occlusion GUI](Samples/Desktop/D3D12Raytracing/src/D3D12RaytracingRealTimeDenoisedAmbientOcclusion/Screenshot_small.png)
+1. [D3D12 Raytracing](Samples/Desktop/D3D12Raytracing/readme.md): This sample demonstrates how DirectX Raytracing (DXR) brings a new level of graphics realism to video games, previously only achievable in the movie industry.
+    
+    <img src="Samples/Desktop/D3D12Raytracing/src/D3D12RaytracingRealTimeDenoisedAmbientOcclusion/Screenshot_small.png" alt="D3D12 Raytracing Real-Time Denoised Ambient Occlusion preview" height="200">
 
 ## MiniEngine: A DirectX 12 Engine Starter Kit
 In addition to the samples, we are announcing the first DirectX 12 preview release of the MiniEngine.
@@ -39,10 +42,10 @@ It came from a desire to quickly dive into graphics and performance experiments.
 * Easy-to-use dynamic constant buffers and descriptor tables
 
 ## Requirements
-Some samples require a DirectX 12 Ultimate capable GPU and driver.
+Some samples require support for DirectX 12 Ultimate, see [this](https://devblogs.microsoft.com/directx/directx-12-ultimate-for-holiday-2020) post for details.
 ### Master branch
 This branch is intended for the latest [released](https://docs.microsoft.com/en-us/windows/release-information/) Windows 10 version.
-* Windows 10 version 2004
+* Windows 10 version 2004 (no new features were added in version 20H2)
 * [Visual Studio 2019](https://www.visualstudio.com/) with the [Windows 10 SDK version 2004(19041)](https://developer.microsoft.com/en-US/windows/downloads/windows-10-sdk)
 ### Develop branch
 This branch is intented for features available in the latest Windows Insider Preview