Fix create host docs

docs/admin/adding-a-host-to-the-network.md

@@ -43,7 +43,7 @@ To create a `bootstrap.yml` file for the new host, the admin should perform the
 following command from their own host:
 
 ```
-isle hosts create-bootstrap \
+isle admin create-bootstrap \
     --hostname <name> \
     --ip <ip> \
     --admin-path <path to admin.yml> \
@@ -66,7 +66,7 @@ GPG is being used to secure `admin.yml` then the following could be used to
 generate a `bootstrap.yml`:
 
 ```
-gpg -d <path to admin.yml.gpg> | isle hosts create-bootstrap \
+gpg -d <path to admin.yml.gpg> | isle admin create-bootstrap \
     --hostname <name> \
     --ip <ip> \
     --admin-path - \