Typo fixed in CHANGELOG

Author: paganol

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 -   Save memory in pointing generation [#488](https://github.com/litebird/litebird_sim/pull/488)
 
--   **Breaking change**: Major reworking of the interfaces and handling of inputs across the framework [#479](https://github.com/litebird/litebird_sim/pull/479), in detail:
+-   **Breaking change**: Major reworking of the interfaces and handling of inputs across the framework [#479](https://github.com/litebird/litebird_sim/pull/479), in detail:
 
     1. Rework the handling of spherical harmonics by integrating ducc0 as the primary engine for SHT operations, including interpolation.
     2. New container for healpix maps called HealpixMap and further improvement of the class SphericalHarmonics. All the simulation modules are now only compatible with these new classes.