Fix `dws_asd` documentation

• Fix unit in documentation for dws_asd init's argument in Instrument

lisainstrument/instrument.py

@@ -165,7 +165,7 @@ class Instrument:
             mosa_jitter_asds: tuple of dictionaries of angular jitter amplitude spectral densities
                 for MOSA, ordered as (yaw, pitch) [rad/sqrt(Hz)]
             mosa_angles: dictionary of oriented MOSA opening angles [deg], or 'default'
-            dws_asds: dictionary of amplitude spectral densities for DWS measurement noise [rad/s/sqrt(Hz)]
+            dws_asds: dictionary of amplitude spectral densities for DWS measurement noise [rad/sqrt(Hz)]
             ranging_biases: dictionary of ranging noise bias [s]
             ranging_asds: dictionary of ranging noise amplitude spectral densities [s/sqrt(Hz)]
             prn_ambiguity: distance after which PRN code repeats itself [m] (reasonable value is 300 km),