More formatting for README.md

Author: Shan Huang

README.md

@@ -4,20 +4,21 @@ Pose Animator takes a 2D vector illustration and animates its containing curves
 
 *This is not an officially supported Google product.*
 
-<img src="/resources/gifs/avatar-new-1.gif?raw=true" alt="cameraDemo" style="width: 400px;"/>
+<img src="/resources/gifs/avatar-new-1.gif?raw=true" alt="cameraDemo" style="width: 250px;"/>
 
-<img src="/resources/gifs/avatar-new-full-body.gif?raw=true" alt="cameraDemo" style="width: 400px;"/>
+<img src="/resources/gifs/avatar-new-full-body.gif?raw=true" alt="cameraDemo" style="width: 250px;"/>
 
 In skeletal animation a character is represented in two parts:
 1. a surface used to draw the character, and 
 1. a hierarchical set of interconnected bones used to animate the surface. 
 
 In Pose Animator, the surface is defined by the 2D vector paths in the input SVG files. For the bone structure, Pose Animator provides a predefined rig (bone hierarchy) representation, designed based on the keypoints from PoseNet and FaceMesh. This bone structure’s initial pose is specified in the input SVG file, along with the character illustration, while the real time bone positions are updated by the recognition result from ML models.
 
-<img src="https://firebasestorage.googleapis.com/v0/b/pose-animator-demo.appspot.com/o/ml-keypoints.png?alt=media" style="width:400px;"/>
+<img src="https://firebasestorage.googleapis.com/v0/b/pose-animator-demo.appspot.com/o/ml-keypoints.png?alt=media" style="width:250px;"/>
 
-<img src="/resources/gifs/avatar-new-bezier-1.gif?raw=true" alt="cameraDemo" style="width: 400px;"/>
+<img src="/resources/gifs/avatar-new-bezier-1.gif?raw=true" alt="cameraDemo" style="width: 250px;"/>
 
+// TODO: Add blog post link.
 For more details on its technical design please check out this blog post.
 
 ### Demo 1: [Camera feed](https://pose-animator-demo.firebaseapp.com/camera.html)
@@ -53,12 +54,14 @@ yarn watch
     * Flatten all subgroups so that ‘illustration’ only contains path elements.
     * Composite paths are not supported at the moment.
     * The working file structure should look like this:
+```
         [Layer 1]
         |---- skeleton
         |---- illustration
               |---- path 1
               |---- path 2
               |---- path 3
+```
 1. Embed the sample skeleton in ‘skeleton’ group into your illustration by moving the joints around.
 1. Export the file as an SVG file.
 1. Open Pose Animator camera demo. Once everything loads, drop your SVG file into the browser tab. You should be able to see it come to life :D