Improvements to the GenServer and Supervisor snippets

snippets/elixir.snippets

@@ -265,22 +265,27 @@ snippet genserver basic genserver structure
 	use GenServer
 
 	@doc false
-	def start_link do
-		GenServer.start_link(__MODULE__, ${1:Map.new})
+	def start_link(init_args) do
+		GenServer.start_link(__MODULE__, init_args, name: __MODULE__)
 	end
 
 	@impl true
-	def init(state) do
-		{:ok, state}
+	def init(_init_args) do
+		{:ok, []}
 	end
-snippet genserver: basic genserver structure
-	use GenServer
+snippet super basic supervisor structure
+	use Supervisor
 
 	@doc false
-	def start_link, do: GenServer.start_link(__MODULE__, ${1:Map.new})
+	def start_link(init_args) do
+		Supervisor.start_link(__MODULE__, init_args, name: __MODULE__)
+	end
 
 	@impl true
-	def init(state), do: {:ok, state}
+	def init(_init_args) do
+		children = [${1}]
+		Supervisor.init(children, strategy: :one_for_one)
+	end
 snippet impl
 	@impl true
 	def ${1:name} do