typo correction

Author: mfouesneau

doc/vega.rst

@@ -52,7 +52,7 @@ Vega Flavors
 
     Since version 1.7.0, Pyphot includes a set of Vega flavors one can use transparently as photometric standards.
 
-    * Pyphot provides `alpha_stis_003` (aliased to `legacy`) as the default Vega flavor (and only one before version 1.6.1). This flavor is also the reference for the values provided in the documentation.
+    * Pyphot provides `alpha_stis_003` (aliased to `legacy`) as the default Vega flavor (and only one before version 1.7.0). This flavor is also the reference for the values provided in the documentation.
     * (since version 1.7.0) Pyphot provides also `alpha_lyr_mod_003`, `alpha_lyr_mod_004`, and `alpha_stis_011` as alternative Vega flavors.
     * in a future release, Pyphot will switch the default Vega flavor to `alpha_stis_011` which is a more recent model that incorporates updated NLTE models and provides a more accurate representation of Vega's spectral energy distribution, particularly in the ultraviolet and optical ranges.