Just a few typos in the little bottom right clickable.
In How do I get placed into a League:
Second line, missing a q from queue. Right after, missing a Q in require.
Third line, same thing.
In What are Tiers:
Missing a comma after 'In addition..'
After the phrase Challenger Tier, there is an unnecessary A.
In What are Divisions:
Missing an F in For.
Missing a series of commas starting with Gold IV.
In What are League Points:
Missing an apostrophe in they'll on the first line.
Missing a Q from Queue in the second line.
Missing a comma after lost in the last line.
Missing an apostrophe in can't on the last line.
In How does a Promotion Series work:
Missing an L from cancelled in the first line of the third paragraph.
Missing a Q from queue dodging in the same line.
Same two errors in the second line.
In Do I only compete against other players in the same League:
Missing an F from for on the second paragraph.
Missing a Q from queue on the same line.
Missing a Q from queue on the second line.
In Can I lose a Tier that I've earned:
Missing an apostrophe in you've on the first line.
Missing a Q in qualified right after.
Missing an H in however in the third line.
Missing a comma right after however.
Missing a semicolon right after fluid in the same line.
Missing an apostrophe in you've in the last line.
In How does Challenger Tier work:
Missing a comma after others on the second line.
Missing an 'and' right afterwards in the same line.
Missing a Q in qualifies in the fourth paragraph, second line.
In What happens if I stop playing Ranked for a while:
Missing a Q in queue in the first line.
Missing numbers when specifying the amount of days it takes to become active; I assume this is because you have yet to decide on one.
Missing a Q from queue in the third line.
In What determines the amount of league Points I gain from winning a match:
Missing a 2 in the third paragraph, before the period.
Missing a Q in quickly in the same line.
In Why do my League Points sometimes earnings sometimes decrease when I'm close to making it to the next Tier:
Missing a Q from qualify in the third line.
Missing an apostrophe in you'll in the same line.
In What are Emblems:
Missing an F in fresh blood in the fresh blood emblem line.
Missing a J in join in the same line.
Missing an H in hot in the hot streak line.
In What determines the ordering of the League standings:
Missing a Q in qualifies in the second line.
In What is the penalty for queue dodging in Ranked now:
Missing a Q from queue in the first line.
Extraneous S in minutes in the second line.
Missing an F and a Q in 'Further Queue dodging..' in the same line.
Missing an F in for in the last line.
In Why should I lose LP for a queue dodge:
Missing a Q in queue in the third line.
Missing a Q in queue in the fourth line.
Missing a Q in queue in the fifth line.
I hope this helps with making it look more professional. 