diff --git a/README.md b/README.md
index 91f6a5ba59b3cf1413fa8817da44b1bbbbbe4971..9d88b8d7a2348adba52df73c3ac927bae9d15c0c 100644
--- a/README.md
+++ b/README.md
@@ -45,14 +45,18 @@ By default, the container downloads and installs JIRA v6.2 on the first boot. To
 docker run -e JIRA_VERSION=6.2 -d registry.codemate.se/jira
 ```
 
-Version 6.2 and later should work.
-
 ### Overiding JIRA files
 
-By providing an environment variable name `JIRA_OVERLAY` that points to a zipped tar file you can apply an overlay on the JIRA installation. This tarball will be unzipped and extracted in the root of the JIRA installation directory. The overlay enables you to add custom jira configuratios such as SSL or Crowd integration. The overlay is fetched using curl so if you need to provide basic auth credentials simply prefix the url with the credentials, for example:
+By providing an environment variable name `JIRA_OVERLAY` that points to a gzipped tar file you can apply an overlay on the JIRA installation. This tarball will be unzipped and extracted in the root of the JIRA installation directory. The overlay enables you to add custom jira configuratios such as SSL or Crowd integration.
+
+```
+docker run -e JIRA_OVERLAY=http://10.0.0.1/jira-config.tgz -d registry.codemate.se/jira
+```
+
+The overlay is fetched using curl so if you need to provide basic auth credentials simply prefix the url with the credentials, for example:
 
 ```
--u username:password http://10.0.0.1/jira-config.tgz
+JIRA_OVERLAY="-u username:password http://10.0.0.1/jira-config.tgz"
 ```
 
 ### Combined options
@@ -60,7 +64,7 @@ By providing an environment variable name `JIRA_OVERLAY` that points to a zipped
 The following example shows the options we use for our CI environment:
 
 ```
-docker run -name jira_server \
+docker run -name jira \
   -e JAVA_OPTS=-Xmx1024m \
   -e JIRA_VERSION=6.2 \
   -e JIRA_OVERLAY=http://10.0.0.1/jira-config.tgz \
@@ -78,7 +82,7 @@ docker run -name jira_server \
 
 * `JIRA_HOME` - JIRA home directory (default `/home/jira`)
 * `JIRA_VERSION` - The version to install an run (default `6.2`)
-* `JIRA_CONFIG` - A URL pointing to an tarball overlay
+* `JIRA_OVERLAY` - A URL pointing to an tarball overlay
 
 ## Exposed ports