fix(docs): MenuTree example (wrong anchoring values)
fix(docs): MenuTree example (wrong anchoring values)

pdanpdan/quasar,pdanpdan/quasar,quasarframework/quasar,rstoenescu/quasar-framework,quasarframework/quasar,rstoenescu/quasar-framework,fsgiudice/quasar,pdanpdan/quasar,quasarframework/quasar,fsgiudice/quasar,fsgiudice/quasar,rstoenescu/quasar-framework,quasarframework/quasar,pdanpdan/quasar