v0.2.3

WaveguideQED v0.2.3

Diff since v0.2.2

expect(O,rho) now returns a sum over all timebins and waveguide operators can now be added together with LazySum. Also see: #44

Merged pull requests:

• Fix typos in README (#42) (@phantomlsh)
• Fix Examples/qo_twophoton (#43) (@phantomlsh)
• expect() implementation and addition of waveguide operators (#45) (@mabuni1998)

Closed issues:

• Typos in README (#41)