add readme

README.md

@@ -18,6 +18,7 @@ $ docker run -d -p3000:3000 -p9993:9993 -p3180:3180\
 For ZTNCUI: https://github.com/key-networks/ztncui
 
 | REQUIRED | Name | Explanation | Default Value |
+|:--------:|:--------:|:--------:|:--------:|
 |  no  | HTTPS_HOST | Only Listen on HTTPS_HOST:HTTPS_PORT | NO DEFAULT |
 | no | HTTPS_PORT | HTTPS_PORT | 3443 |
 | no | HTTP_PORT | HTTP_PORT | 3000 |
@@ -26,6 +27,7 @@ For ZTNCUI: https://github.com/key-networks/ztncui
 This image additional specific:
 
 | REQUIRED | Name | Explanation | Default Value |
+|:--------:|:--------:|:--------:|:--------:|
 | no | MYDOMAIN | generate TLS certs on the fly (if not exists) | ztncui.docker.test |
 | no | ZTNCUI_PASSWD | generate admin password on the fly (if not exists) | password |
 | YES | MYADDR | your ip address, public ip address preferred | NO DEFAULT |