Mention the src layout as recommended practice
Mention the src layout as recommended practice

vmalloc/dessert,etataurov/pytest,davidszotten/pytest,rmfitzpatrick/pytest,MichaelAquilina/pytest,skylarjhdownes/pytest,tgoodlet/pytest,ddboline/pytest,nicoddemus/pytest,txomon/pytest,The-Compiler/pytest,tomviner/pytest,alfredodeza/pytest,tareqalayan/pytest,hackebrot/pytest,tomviner/pytest,The-Compiler/pytest,Akasurde/pytest,jaraco/pytest,flub/pytest,nicoddemus/pytest,markshao/pytest,RonnyPfannschmidt/pytest,pfctdayelise/pytest,pytest-dev/pytest