Improve Elma Online installation instructions discoverability

[abulaatikko]

After writing updated instructions to new Elasto Mania patches (both official and unofficial) (not yet released) I suggest a few improvements to Elma Online website.

1. Help page (https://elma.online/help) SHOULD have a link to EOL patches page and release history (https://elma.online/help/updates).
2. "Game updates" page SHOULD mention that EOL can be played without Steam if the player has bought the game before 2020 or have got the files somewhere else (like GOG). Steam is kind of wrapper to play Elma, not mandatory.
3. Front page (https://elma.online/) SHOULD not have an incorrectly formatted "More" link because it links to the same page as the "Help" link.
4. Front page COULD have a link to EOL patches page and release history.
5. "Game Updates" page COULD be renamed to "Updates (game)" to make it easier to spot in the left navigation.