Motion 229 increase the number of validators by 1 every era (6hs) for 100 eras. 

The motion was opened since [referendum 88](https://kusama.polkassembly.io/referendum/88) passed but was not able to be executed (for using `after: 0` instead of `after: 1`). I proposed the motion at luckyve's request and given the referendum passed, until we can test and use the [damping function](https://github.com/paritytech/substrate/pull/7231). For this reason as well as for the numbers of waiting validators, I proposed a repetition of 100 instead of 400, as originally proposed.

 Schedule the currently externally-proposed majority-carries referendum to be tabled
 immediately. If there is no externally-proposed referendum currently, or if there is one
 but it is not a majority-carries referendum then it fails.

 The dispatch of this call must be `FastTrackOrigin`.

 - `proposal_hash`: The hash of the current external proposal.
 - `voting_period`: The period that is allowed for voting on this proposal. Increased to
   `FastTrackVotingPeriod` if too low.
 - `delay`: The number of block after voting has ended in approval and this should be
   enacted. This doesn't have a minimum amount.

 Emits `Started`.

 Weight: `O(1)`

 Anonymously schedule a task after a delay.

 # <weight>
 Same as [`schedule`].
 # </weight>

- The proposal is to increase the number of validators by 1 every 6 hours for 100 times.
- The proposal was made because a previous referendum passed but was not executed correctly.
- The proposal suggests using a repetition of 100 instead of the original 400.
- The proposal is waiting for testing and using a damping function.
- The proposal was made at luckyve's request.

#57 Motion 229 replacing Referendum 88 - validators increase.