Update README.md

Author: erikw

README.md

@@ -58,33 +58,38 @@ See also:
 <p><a href = "#"><img alt="Stars 2024" src="https://img.shields.io/badge/dynamic/json?style=for-the-badge&logo=data:image/jpg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD//gAfQ29tcHJlc3NlZCBieSBqcGVnLXJlY29tcHJlc3P/2wCEAAQEBAQEBAQEBAQGBgUGBggHBwcHCAwJCQkJCQwTDA4MDA4MExEUEA8QFBEeFxUVFx4iHRsdIiolJSo0MjRERFwBBAQEBAQEBAQEBAYGBQYGCAcHBwcIDAkJCQkJDBMMDgwMDgwTERQQDxAUER4XFRUXHiIdGx0iKiUlKjQyNEREXP/CABEIAEAAQAMBIgACEQEDEQH/xAAcAAEAAgIDAQAAAAAAAAAAAAAABggFBwMECQH/2gAIAQEAAAAAo+ZXkwwNz5LQwnkD3pk68TyBrFb2kfbiejq3H30t5vM/jFs4d0tlVAMhcWlS5tScQAf/xAAYAQADAQEAAAAAAAAAAAAAAAABBQYCBP/aAAgBAhAAAABtxDuVyOa9rAi/ysLH/8QAGAEAAwEBAAAAAAAAAAAAAAAAAQIEAAP/2gAIAQMQAAAAnbL0oM3Osxl8n//EADYQAAEEAQEEBwYEBwAAAAAAAAIBAwQFBgcACBEhEBITIDEyQRQVIlNhchYXMFJic4KRkqPB/9oACAEBAAE/AOmkpLTI7SJS0sQpM+USgyyKoimqJx9dsgx+4xa2k0d9CKJYx0BXWTVFUe0BDHmPFOaL393xvtNXcR+jr5f4sntvLN9TWDIS/fGgH/oEe7K0xz6JQV2UHi85ynmxhlNSWG+2RGj5oTiBxIEVPUujduDr6wYx9AnF/aKe29E31NWZxfMrIRdFdpjntpSzsji4xNSpiRjkuSng7ECaBOKq31+Cuf09OCbyuc4gzDrbEGLqqjgDQMv8GXgaDkgtuhtHyXd11l5XdfHqbt7z+0okKQp/R9v4HNsH3d4GB59VZjQ5G5JrWWpKLElNorqdu0oIoOhyLbUTd/haj51+KrjIHYlcMCPGWNGaTtjJpSVVVw+QptIud3LRnlXQo9tdM+VGESfJQ/5pr1G9s63m82ypmZXU7DFJWPgbRA3wffNs+Sobh9wRIiEQFVJVREROaqq7acwPyR0kfu81sZSvK37Y7EeeJRYI+TcVkC5Ca+u2ZsNa8aRpZ4XayWJRAr7cUHyBDeb88OSI7OtOsOuMvtk262SgYGnAhIV4Kiovqnd3ZdLEvLNdQb6OiVNW6qQEd8r8oPFz7GdtftWS1CyH3VUSVXGqpwhjdXyyXvApH/A20J1Yd03yT2axdIscsyBuaHyD8BkD9vgW281pczBkhqXjjYlW2Kh7yBrmAPn5JA/wO9yqZgSbSuj2sxYkByS0EmQIK4rTKkiGaCPMlFPTbWzVXHKHDKjTPTOcycN+A2MmRFPiLcMk5Ndb5jvifToRqtSWONWemOpEuP7rCE6kR+YfAFionxxzJfUPFva/j1MS7tY1DPObVNyXBiSTBQJxlF+FVRfX9L//xAAlEQACAwABAwMFAQAAAAAAAAABAgMEBQARQVEGEDESFDI0YpH/2gAIAQIBAT8A5o2Wp0LlpAC0MLuAfjqo68y7T3s6lccAPNCjkD4BI9tSTVhijky68MzBuskcjFSy/wAnzzV9V13zNGjoU7FG29eRVSVeqsxHZhzH9VVosrNoUali7bSBFZIkIVWHljzLl1Zo5JNSvDAWYGOONixC/wBHz7bfX1JqR4Fb9WuwkuzAf4gPnmMD6Y1nw7H6VpjJTlPnuhPs6l0dQxUkEdR8jmRk18isYISzu7l5JX/J2Pc81sqvr1ft5yVKsHjkX8kYdxyNTHGiFyxVQPqPyenc8//EACIRAAICAAUFAQAAAAAAAAAAAAECAAMEEBIhURETIzJBgf/aAAgBAwEBPwCIup1Xkx10O68HplWKySLCRwRK8O3cR0cMoYbiWYdjY7uyqpb7LBWCBWxPJOVXgrNzex2QS3z1i0ey7MMhLLDY3U7fAJXYam1D9EO5Jn//2Q==&labelColor=black&color=118a03&label=2024&query=2024&url=https://adventofcode-badge-erikw.vercel.app/api"></a></p>
 
 ## Development Setup
-### OS: macOS
+### Per Environment
+#### macOS
 ```shell
 brew bundle install
 ```
 
-### Env: Ruby
+#### Ruby
 ```shell
 bundle install
 ```
 
-### Env: JavaScript
+#### JavaScript
 ```shell
 npm install
 ```
 
-### Env: Python
+#### Python
 ```shell
 pip install -r requirements.txt
 ```
 
+### Session Cookie
+Fetch your [Aoc Session Cookie](https://github.com/wimglenn/advent-of-code-wim/issues/1) and store as an envvar or in `.env` as `$AOC_SESSION`.
+
 ### Solve a Puzzle
+
 and now solve today's puzzle or a specific one:
 
 ```shell
-bin/solve_day.sh       # Solve today's puzzle with default lanuage (ruby)
-bin/solve_day.sh 19/5  # 2019 day 5
-bin/solve_day.sh -l py # Solve with language, here Python
+bin/solve_day.sh           # Solve today's puzzle with default lanuage (ruby)
+bin/solve_day.sh 19/5      # 2019 day 5
+bin/solve_day.sh -l py     # Solve with language, here Python
 ```
 
 > [!TIP]