Liquipedia Help Portal
If you just cannot figure it all out, be aware that there are almost always people ready to help in our Discord, don't be afraid to ask questions!
You can always edit to correct a mistake. So do not hesitate to actually push your modification on the wiki. You should not be worried about committing a modification. Of course, it is better to get it right the first time, as correcting mistakes is additional work, but you should not feel nervous and bad because a mistake may end up on the wiki.