I usually enjoy reading your posts, but you are labelling me wrongly. I'm actually surprised you are quoting Aljazeera who are slightly pro-russian.
Regarding the shelling:
"On Friday, 11 July, two days before the shelling, 36–37 Ukrainian soldiers were killed in a Grad rocket bombardment.[5][6] In response, Ukrainian President Petro Poroshenko announced that for "every soldier's life, the militants will pay with dozens and hundreds of their own."[1]"
https://en.wikipedia.org/wiki/Shelling_of_Donetsk,_Russia
You do realise that there were 2 Minsk agreements (different dates).
Minsk1 was about peace between the Ukraine Government and the 2 separitist groups - but much wasn't implimented, hence a Minsk2 was necessary.
Minsk2 was about withdrawing any heavy weapons, Russia claimed it didn't have any, so the agreement didn't apply to them.