You can always take the advice from the articles above and then head to youtube and find the videos that you think are accurate in regards to the above articles.
I didn't take the time to do enough research the first time I tried to do my edges and ended up in a shop getting them fixed. lol....
If all you have is dull edges it's really not rocket science to sharpen them. And worst case you end up at the shop. I think it cost me 30 bucks for an edge job and something else I had down at the same time that I don't remember.