Update README.md

README.md

@@ -178,6 +178,7 @@ dispersion_unc = disp.cassiniError(zenith_obs, l1, l2, T, P, H, xc,
 The package also includes limited functionality of other refractivity models. These are not as extensive, work only under standard atmospheric conditions, or over a limited wavelength range, compared to the Ciddor model.
 
 Included are
+
 | Model name | Function | Remarks |
 | ---------- | -------- | ------- |
 | Barrell & Sears (1939) | `BarrellAndSears()` | Outdated model, especially poor for short wavelengths. |