dev: add notes

srcs/compose.yaml

@@ -7,6 +7,7 @@ services:
     ports:
       - 8080:80
 
+### services ###
 # image:
 # build:
 # ports:
@@ -36,3 +37,19 @@ services:
 #   - ...
 #   ...
 # volumes: {out}:{in}:{rw|ro}
+# networks: ???
+
+### networks (list of networks) ###
+# (services are connected to the network "default" by default)
+# (see https://docs.docker.com/compose/how-tos/networking/)
+
+### volumes (list of volumes) ###
+# (there's nothing useful???)
+
+### configs ###
+# ???
+
+### secrets ###
+# ??? see configs before
+
+###