[bootlin/training-materials] bc5b71: slides: gdb: fix typo threads -> thread

[Clément Léger]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: bc5b71166524678af9ae163acfbc1978c3509256
      https://github.com/bootlin/training-materials/commit/bc5b71166524678af9ae163acfbc1978c3509256
  Author: Clément Léger <clement.leger at bootlin.com>
  Date:   2023-03-22 (Wed, 22 Mar 2023)

  Changed paths:
    M common/gdb.tex

  Log Message:
  -----------
  slides: gdb: fix typo threads -> thread

Signed-off-by: Clément Léger <clement.leger at bootlin.com>