Update Readme

YashTatkondawar · YashTatkondawar · commit 6749745d27e4 · 2021-08-04T12:56:43.000+05:30
Signed-off-by: YashTatkondawar &lt;yashtatkondawar@gmail.com&gt;
diff --git a/docker/latest/README.md b/docker/latest/README.md
@@ -7,7 +7,7 @@
 Default image will be built with latest stable relase.
 
 ```
-    $ docker build --tag fledge:nightly --build-arg PKG_VERSION=nightly .
+    $ docker build --tag fledge:nightly --build-arg PKG_VERSION=nightly -f Dockerfile.ubuntu1804 .
 ```
 
 
