fix accidental cap folding

compose.yml

@@ -26,7 +26,7 @@ services:
         mode: 0555
     entrypoint: &entrypoint /usr/local/bin/entrypoint.sh
     # entrypoint: &entrypoint ['tail', '-f', '/dev/null']
-    volumes: &appvolume
+    volumes: &appVolume
       - app:/opt/mastodon/public/system
     #healthcheck:
     #
@@ -174,7 +174,7 @@ services:
     configs: *configs
     entrypoint: *entrypoint
     secrets: *secrets
-    networks: *bothNetworks
+    networks: *bothnetworks
     deploy:
       update_config:
         failure_action: rollback
@@ -199,7 +199,7 @@ services:
       update_config:
         failure_action: rollback
         order: start-first
-    networks: *bothNetworks
+    networks: *bothnetworks
     volumes: *appVolume
     environment: *env