github-extension

Example page: https://github.com/egormanga/egormanga/blob/3a6c21f809660a9f8bda63a72e2c2c339860f9ec/README.md

Could you add a newline indicator too, I find them useful when used in conjunction with space/tab indicators. So you can tell if there is an annoying superfluous space/tab before the \n.

UTF-8 has several of these characters to choose from.

⤶ U+2936 ARROW POINTING DOWNWARDS THEN CURVING LEFTWARDS
↵ U+21B5 DOWNWARDS ARROW WITH CORNER LEFTWARDS
⏎ U+23CE RETURN SYMBOL
↲ U+21B2 DOWNWARDS

Context
As per the current implementation (check the background script), the settings tab is opened on every onInstalled event.

Problem
It results in behavior where the tab is opened on every extension version update as well as the first installation event, which is unnecessary.

Solution
Th