message: Small edit in CHANGELOG
diff: Version 4.5.1 (development)
  ===========================
  -- Removed the support for the Mesquite toolkit. Mesh optimization can be
  - performed by MFEM's TMOP functionality, see the mesh-optimizer miniapp.
  +- Removed the support for the Mesquite toolkit. We recommend using MFEM's TMOP
  + functionality instead for mesh optimization. See the mesh-optimizer miniapp.
  +
  Version 4.5, released on October 22, 2022
  =========================================
  