Add changelog entry changelog/971.doc
Add changelog entry changelog/971.doc

tareqalayan/pytest,ddboline/pytest,pfctdayelise/pytest,davidszotten/pytest,MichaelAquilina/pytest,nicoddemus/pytest,alfredodeza/pytest,rmfitzpatrick/pytest,The-Compiler/pytest,The-Compiler/pytest,RonnyPfannschmidt/pytest,nicoddemus/pytest,tomviner/pytest,hackebrot/pytest,pytest-dev/pytest,markshao/pytest,txomon/pytest,Akasurde/pytest,tomviner/pytest