I and a more-senior co-worker are both contributors to shared content. This content is internal facing and is used to distribute information between teams. We are two of many contributors to this area. Though it is not a formal requirement of my job, I am interested in sharing our team's knowledge and improving the information therein.
Some of the information is not well-organized and reads more like notes than well thought out sentences.
I have some experience in technical writing/ content management and believe I have valid suggestions for improvement to content others have created. How can I best offer suggestions for improvement to my more-senior co-worker? What if they refuse the suggestions?