[Differences.pod] Added a before/after comparison of the binary numeric AND. Added a note about the bitwise operator prefixes and added a before/after comparison of the shift left operator and the shift left assignment operator.
[Differences.pod] Added a before/after comparison of the binary numeric
AND. Added a note about the bitwise operator prefixes and added a
before/after comparison of the shift left operator and the shift left
assignment operator.

[S03] Added an explicit example of an assignment operator.


git-svn-id: 53605643c415f7495558be95614cf14171f1db78@28060 c213334d-75ef-0310-aa23-eaa082d1ae64

prammer/specs,perl6/specs,perl6/specs,prammer/specs,tokuhirom/specs,tokuhirom/specs,tokuhirom/specs,prammer/specs