message: Fix a Typo
  "-m" flag in the "npm run adminme" command seems to be deprecated. Changed to the appropriate "-r" flag.
diff: @@ -15,7 +15,7 @@ is formatted as https://discordapp.com/channels/``guildid``/``channelid``
  * The ``adminme`` script is provided to set Admin/Moderator or any other custom power level to a specific user.
  * e.g. To set Alice to Admin on her ``example.com`` HS on default config. (``config.yaml``)
  - * ``npm run adminme -- -m '!AbcdefghijklmnopqR:example.com' -u '@Alice:example.com' -p '100'``
  + * ``npm run adminme -- -r '!AbcdefghijklmnopqR:example.com' -u '@Alice:example.com' -p '100'``
  * Run ``npm run adminme -- -h`` for usage.
  Please note that `!AbcdefghijklmnopqR:example.com` is the internal room id and will always begin with `!`.
  