switch to [tag]

Dockerfile

@@ -2,7 +2,7 @@
 FROM alpine:3.9
 
 # :: Variables
-ENV NGINX_VERSION 1.15.8
+ENV NGINX_VERSION 1.16.0
 ENV ADD_MODULE_HEADERS_MORE_NGINX_VERSION 0.33
 
 # :: Run

README.md

@@ -22,7 +22,7 @@ docker run --name nginx \
     -v volume-etc:/nginx/etc \
     -v volume-www:/nginx/www \
     -v volume-ssl:/nginx/ssl:ro \
-    -d 11notes/nginx:latest
+    -d 11notes/nginx:[tag]
 ```
 
 ## difference between official docker images

source/index.html

@@ -54,7 +54,7 @@
                             &emsp;-v volume-etc:/nginx/etc \<br />
                             &emsp;-v volume-www:/nginx/www \<br />
                             &emsp;-v volume-ssl:/nginx/ssl:ro \<br />
-                            &emsp;-d 11notes/nginx:latest
+                            &emsp;-d 11notes/nginx:[tag]
                     </div>
                 </div>
             </div>