[GRASS-git] [OSGeo/grass-addons] cadfce: Update i.spec.sam.html

[Yann Chemin]

  Branch: refs/heads/YannChemin-patch-1
  Home:   https://github.com/OSGeo/grass-addons
  Commit: cadfce039a71d58a4c962aeac3fa24dc2fa9c91a
      https://github.com/OSGeo/grass-addons/commit/cadfce039a71d58a4c962aeac3fa24dc2fa9c91a
  Author: Yann Chemin <dr.yann.chemin at gmail.com>
  Date:   2023-12-01 (Fri, 01 Dec 2023)

  Changed paths:
    M src/imagery/i.spec.sam/i.spec.sam.html

  Log Message:
  -----------
  Update i.spec.sam.html

Added the description for the input matrix file containing the signatures (copied shamelessly from i.spec.unmix manual)