docs(migration): duplicated 5.0.0-beta2 heading (#33178)
docs(migration): duplicated 5.0.0-beta2 heading (#33178)


m5o/bootstrap,GerHobbelt/bootstrap,coliff/bootstrap,tjkohli/bootstrap,twbs/bootstrap,tjkohli/bootstrap,GerHobbelt/bootstrap,m5o/bootstrap,inway/bootstrap,GerHobbelt/bootstrap,inway/bootstrap,twbs/bootstrap,inway/bootstrap,coliff/bootstrap