Update launch-steps-1proposal.md

docs/developer-docs/integrations/sns/launching/launch-steps-1proposal.md

@@ -36,6 +36,8 @@ ls bazel-bin/rs/sns/cli/sns
 
 Typically, dapp developers choose initial parameters that will be used in subsequent proposals.
 
+:::info These parameters also define the initial neurons with which the SNS governance canister will be installed. Before being fully launched, the SNS governance canister is in a pre-decentralization-swap mode and only few proposals are allowed (see Step 7). However, some SNS proposals might already be used during this time, for example upgrades to the dapp canister(s) while the launch is ongoing or registering custom proposals for that DAO. Such operations require submitting and adopting an SNS proposal during the launch process, and thus before the SNS is fully launched. Some frontends, for example the NNS frontend dapp, do not show neurons of SNSs that are not fully launched and thus neurons controlled by NNS frontend dapp principals will only be visible after a successful launch. Therefore, the initial neurons must be carefully setup in a way so that enough of them can be operated already during the launch process. :::
+
 ### 2. Submit NNS proposal to create SNS
 
 Anyone who owns an eligible NNS neuron with enough stake can submit an NNS