add color encoding param

and update Tree diagram with small layout tweaks made to the one in the writeup

Author: repo-visualizer

README.md

@@ -30,6 +30,12 @@ The maximum number of nested folders to show files within. A higher number will
 
 Default: 5
 
+## `color_encoding`
+
+What metric to represent with color in the diagram. Options: "type" | "number-of-changes" | "last-change"
+
+Default: "type"
+
 ## Example usage
 
 You'll need to run the `actions/checkout` Action beforehand, to check out the code.
@@ -42,5 +48,4 @@ You'll need to run the `actions/checkout` Action beforehand, to check out the co
   with:
     output_file: "images/diagram.svg"
     excluded_paths: "dist,node_modules"
-    max_depth: 9
 ```

action.yml

@@ -11,6 +11,9 @@ inputs:
   max_depth:
     description: "The maximum number of nested folders to show files within. Default: 9"
     required: false
+  color_encoding:
+    description: "What metric to represent with color in the diagram. Options: 'type' | 'number-of-changes' | 'last-change'. Default: 'type'"
+    required: false
 runs:
   using: "node12"
   main: "index.js"