diff --git a/contrib/man/md/Dockerfile.5.md b/contrib/man/md/Dockerfile.5.md
index 06970eb871..a298083f84 100644
--- a/contrib/man/md/Dockerfile.5.md
+++ b/contrib/man/md/Dockerfile.5.md
@@ -6,12 +6,12 @@
 Dockerfile - automate the steps of creating a Docker image
 
 # INTRODUCTION
-**Dockerfile** is a configuration file that automates the steps of creating a
-Docker image. It is similar to a Makefile. Docker reads instructions from
-**Dockerfile** to automate the steps otherwise performed manually to create 
-an image. To build an image, create a file called **Dockerfile**.  The 
-**Dockerfile** describes the steps taken to assemble the image. When the 
-**Dockerfile** has been created, call the **docker build** command, using the 
+The **Dockerfile** is a configuration file that automates the steps of creating
+a Docker image. It is similar to a Makefile. Docker reads instructions from the
+**Dockerfile** to automate the steps otherwise performed manually to create an
+image. To build an image, create a file called **Dockerfile**.  The
+**Dockerfile** describes the steps taken to assemble the image. When the
+**Dockerfile** has been created, call the **docker build** command, using the
 path of directory that contains **Dockerfile** as the argument.
 
 # SYNOPSIS