ex:tldr:b6e00

This command consists of three parts:

1. i<Enter>: This starts an insert mode by pressing the i key, followed by pressing the <Enter> key. So, it inserts a new line in the document.
2. ${text}: This is a placeholder, where you should replace ${text} with the desired text you want to insert at that position.
3. <C-c>: This key combination, denoted by <C-...>, represents pressing the Ctrl and c keys simultaneously. In this context, it is used to exit the insert mode and return to the normal mode.

When you execute this command, it will insert a new line in the document, where you can enter the desired text. Once you're done, you can press Ctrl+c to exit the insert mode.