[Bug] Update turn on pages instructions

[sebbrandes]

Update of the content of Step 1

Actually, the indications are :
3.Click Pages, in the "GitHub Pages" section, use the Source drop-down, then select main branch.

But when you look on the site, it is more like :

3.Click Pages, in the "Code and automation" section, use the Branch drop-down, then select main

[Lastrick1]

Agree with @sebbrandes on this issue, this instruction is poorly worded. I would expand on what OP said by adding something like,

"3. Click Pages in the "Code and automation" section. Next, ensure the Source is set to "Deploy from a branch"; then using the Branch drop-down, select main."