~/.config/awesome/rc.lua: Always put pidgin/chromium on the right tags.

.config/awesome/rc.lua

      properties = { floating = true } },
    { rule = { class = "gimp" },
      properties = { floating = true } },
    -- Set Firefox to always map on tags number 2 of screen 1.
    -- { rule = { class = "Firefox" },
    --   properties = { tag = tags[1][2] } },
    -- my own rules
    { rule = { class = "Chromium" },
      properties = { tag = tags[1][2] } },
    { rule = { class = "Pidgin" },
      properties = { tag = tags[1][3] } }
}
-- }}}