Original sentence: On a Justgiving website, Jonathan said: "The thought of leading the way as the benchmark flyer in front of 25,000 people is obviously terrifying, but it is going to be a lot of fun and, most importantly, a brilliant opportunity for me to raise funds for Breast Cancer Care, a charity that is very close to my heart
Edited sentence: On a JustGiving website, Jonathan said: "The thought of leading the way as the benchmark flyer in front of 25,000 people is obviously terrifying, but it is going to be a lot of fun and, most importantly, a brilliant opportunity for me to raise funds for Breast Cancer Care, a charity that is very close to my heart