Learning how to contribute

[lecneri]

Hello,

A friend want to contribute with the project because he faced some hardtime accessing mobile, but not sure how to quite do it. And asked me to help.
He downloaded dist version 3.20.1 of openlayers.org and replaced ol.js and ol.css of resources folder.
Because of it, he had to alter resources/ol-layerswitcher.js at line 300
FROM
var descendantVisibility = group.getLayersArray().map(function (l) {
To
var descendantVisibility = group.getLayers().getArray().map(function (l) {
We'd like to know how can we submit and contribute to this project doing this modification, and doing a PR

[andreaordonselli]

Thank you for wanting to contribute to the project.
The guide to create a pull request is officially explained by github here https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request

In any case it doesn't seem like a good idea to replace the current version of openlayers with an older one.
With this commit openlayers is at version 6.4.3:
533eaba

What we need to do is go from version 6 to version 9, not go back to 3
Thank you