Move to frostfs-node

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>

cmd/frostfs-adm/docs/subnetwork-creation.md

@@ -0,0 +1,39 @@
+# NeoFS subnetwork creation
+
+This is a short guide on how to create NeoFS subnetworks. This guide 
+considers that the sidechain and the inner ring (alphabet nodes) have already been 
+deployed and the sidechain contains a deployed `subnet` contract.
+
+## Prerequisites
+
+To follow this guide, you need:
+- neo-go sidechain RPC endpoint;
+- latest released version of [frostfs-adm](https://github.com/TrueCloudLab/frostfs-node/releases);
+- wallet with NeoFS account.
+
+## Creation
+
+```shell
+$ frostfs-adm morph subnet create \
+    -r <side_chain_RPC_endpoint> \
+    -w </path/to/owner/wallet> \
+    --notary
+Create subnet request sent successfully. ID: 4223489767.
+```
+
+**NOTE:** in notary-enabled environment you should have a sufficient
+notary deposit (not expired, with enough GAS balance). Your subnet ID
+will differ from the example.
+
+The default account in the wallet that has been passed with `-w` flag is the owner
+of the just created subnetwork.
+
+You can check if your subnetwork was created successfully:
+
+```shell
+$ frostfs-adm morph subnet get \
+    -r <side_chain_RPC_endpoint> \
+    --subnet <subnet_ID>
+Owner: NUc734PMJXiqa2J9jRtvskU3kCdyyuSN8Q
+```
+Your owner will differ from the example.