Resolve "Check coupling of GWs"

Closes #18 (closed)

• Change GW coupling factors from self.central_freq to -(self.central_freq + self.local_carrier_offsets) (and equivalent for sidebands)

changed milestone to %v1.0.1

added bug label

added 2 commits

• 3e75ead7 - Couple GWs to the frequency offsets
• 9539d482 - Couple GWs with a minus sign

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marked this merge request as ready

requested review from @ohartwig

changed the description

I did a quick check with gws = 1 and everything else turned off, and the result looks good!

merged

mentioned in commit f762df93