Update README.md

Modify Step 7 to match current execution 
instructions.
Merge remote-tracking branch 'upstream/incoming'
Merge remote-tracking branch 'upstream/incoming'
iss308
revert
iss308 plot show current time meaningful to data source
change Remove Manifestation -> Remove From Here
Delete -> Delete Everywhere
Open This Object -> Open This in New Window, move under Windows menu
remove Open in Another Monitor in File and Objects menus
visible save
Revert "iss308 plot show current time meaningful to data source"

This reverts commit 6a282209f1db45fb685786944c4c9acc011d88f9.
Revert "Update README.md"

This reverts commit 7dc079b17fd568ffb7dbaf8b8b49329a57bb3fcf.
Merge pull request #310 from JieD/iss303

Change wording in menus for various actions #303