appendix.md

title banner background image

I used the Image Generator from the following web site:
BoredHumans.com free AI tools
AI generate Image.I'm scared of the future...

title banner front logo

I used the Mark Maker from the following web site:
Emblemmatic Mark Maker
Just enter a string and it will give you a variety of suggestions at once,
and you can easily download PNG or SVG with transparency.

android app Photolayers

PhotoLayers
You can easily layer images together.
There are various adjustments to color and position, and you can even blur the background.

android app Simple Markdown

SimpleMarkdown
Markdown edit (commonmark) simply. with preview

Creating a basic README.md

readme-md-generator