As nice as it is that this person is offering free training plans / advice, just a reminder that it’s really important to know someone’s background in depth (how long have you been running for, what pace do you do your runs, are they all on road, do you do any other sports, how active is your job, any niggles or injuries you’ve had in the past, and most importantly if you have any health conditions that might impact your running). It’s not as easy as ‘if you want to improve 5k time, do 1km easy, 1km faster for 6km twice a week’.
Remember, running isn’t hard, generally the longer you do it consistently, the better you get (which is how couch to 5k works).