Chrome
Navigate to chrome://extensions/.
Turn on developer mode using the 'Developer mode' switch in the upper right hand corner of the page.
Click 'Load Unpacked' and select the dest directory.
I am using sapper (with svelte). Which directory is now dest directory?
The dest directory inside of the svelte-devtools project not the project you're trying to view. In other words svelte-devtools/dest. I hope that clears things up.
Your docs state
I am using sapper (with svelte). Which directory is now dest directory?