Remove remaining references to CHANGES.md from the Recent changes chapter.
Remove remaining references to CHANGES.md from the Recent changes chapter.

coq/coq,gares/coq,Zimmi48/coq,JasonGross/coq,SkySkimmer/coq,Zimmi48/coq,SkySkimmer/coq,JasonGross/coq,gares/coq,silene/coq,gares/coq,ejgallego/coq,ppedrot/coq,ejgallego/coq,ppedrot/coq,Matafou/coq,JasonGross/coq,ppedrot/coq,silene/coq,coq/coq,JasonGross/coq,SkySkimmer/coq,ppedrot/coq,Zimmi48/coq,gares/coq,silene/coq,ejgallego/coq,SkySkimmer/coq,coq/coq,Zimmi48/coq,Matafou/coq,gares/coq,Matafou/coq,ejgallego/coq,ppedrot/coq,coq/coq