This is just a very simple table that contains checkboxes in the first column and timestamps in the second column. Selecting a checkbox will populate the cell to the right with the timestamp that the checkbox was selected. Unselecting it updates the timestamp.

I included a reset button to clear the whole thing. Try it out! For sure want to add other cool stuff but this is a cool start. (This started off as a very simple HTML website also hosted on github pages where I have pretty much the same fucntionality. The styling is different since that page is not using Jekyll. This is definitely a big improvement!)

Checkbox	Timestamp (Last Modified)