Update some comments in code

Author: JonasAlfredsson

examples/docker-compose.yml

@@ -11,9 +11,9 @@ services:
     ports:
       - 80:80
       - 443:443
-    volumes:
-      - nginx_secrets:/etc/letsencrypt
-      - ./user_conf.d:/etc/nginx/user_conf.d
+    volumes:                                    # Storage can be either a
+      - nginx_secrets:/etc/letsencrypt          # Docker managed volume (see list at the bottom)
+      - ./user_conf.d:/etc/nginx/user_conf.d    # or a host mount with a relative or full path.
 
 volumes:
   nginx_secrets:

src/scripts/start_nginx_certbot.sh

@@ -108,7 +108,7 @@ trap "reopen_logs" USR1
 # Nginx and the certbot update-loop process are now our children. As a parent
 # we will wait for both of their PIDs, and if one of them exits we will follow
 # suit and use the same status code as the program which exited first.
-# The loop is necessary since the HUP trap will make any "wait" return
+# The loop is necessary since the signal traps will make any "wait" return
 # immediately when triggered, and to not exit the entire program we will have
 # to wait on the original PIDs again.
 while [ -z "${exit_code}" ] || [ "${exit_code}" = "129" ] || [ "${exit_code}" = "138" ]; do