diff --git a/contrib/compose/nginx/registry.conf b/contrib/compose/nginx/registry.conf
index 28542a47c..3c5549213 100644
--- a/contrib/compose/nginx/registry.conf
+++ b/contrib/compose/nginx/registry.conf
@@ -25,6 +25,9 @@ server {
     if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) {
       return 404;
     }
+    
+    # The docker client expects this header from the /v2/ endpoint.
+    more_set_headers 'Docker-Distribution-Api-Version: registry/2.0';
 
     include               docker-registry-v2.conf;
   }
diff --git a/docs/configuration.md b/docs/configuration.md
index 0b59f41b9..2607f3daf 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -9,6 +9,18 @@ You configure a registry server using a YAML file. This page explains the
 configuration options and the values they can take. You'll also find examples of
 middleware and development environment configurations.
 
+## Overriding configuration options
+Environment variables may be used to override configuration parameters other than 
+version.  To override a configuration option, create an environment variable named 
+REGISTRY\_variable_ where *variable* is the name of the configuration option.
+
+e.g 
+```
+REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/tmp/registry/test
+```
+
+will set the storage root directory to `/tmp/registry/test`
+
 ## List of configuration options
 
 This section lists all the registry configuration options. Some options in
diff --git a/docs/mkdocs.yml b/docs/mkdocs.yml
index 73eefec41..844658206 100644
--- a/docs/mkdocs.yml
+++ b/docs/mkdocs.yml
@@ -7,10 +7,7 @@
 - ['registry/spec/json.md', 'Reference', '    ▪  JSON format' ]
 - ['registry/spec/auth/token.md', 'Reference', '    ▪  Authenticate via central service' ]
 
-<<<<<<< HEAD
-=======
 - ['registry/storage-drivers/azure.md', '**HIDDEN**' ]
 - ['registry/storage-drivers/filesystem.md', '**HIDDEN**' ]
 - ['registry/storage-drivers/inmemory.md', '**HIDDEN**' ]
 - ['registry/storage-drivers/s3.md','**HIDDEN**' ]
->>>>>>> d5c0300... Pushing fix for mkdocs.yml introduced
diff --git a/docs/storagedrivers.md b/docs/storagedrivers.md
index 788bdd0d7..2db67e282 100644
--- a/docs/storagedrivers.md
+++ b/docs/storagedrivers.md
@@ -8,10 +8,10 @@ Provided Drivers
 
 This storage driver package comes bundled with several drivers:
 
-- [inmemory](storage-drivers/inmemory): A temporary storage driver using a local inmemory map. This exists solely for reference and testing.
-- [filesystem](storage-drivers/filesystem): A local storage driver configured to use a directory tree in the local filesystem.
-- [s3](storage-drivers/s3): A driver storing objects in an Amazon Simple Storage Solution (S3) bucket.
-- [azure](storage-drivers/azure): A driver storing objects in [Microsoft Azure Blob Storage](http://azure.microsoft.com/en-us/services/storage/).
+- [inmemory](storage-drivers/inmemory.md): A temporary storage driver using a local inmemory map. This exists solely for reference and testing.
+- [filesystem](storage-drivers/filesystem.md): A local storage driver configured to use a directory tree in the local filesystem.
+- [s3](storage-drivers/s3.md): A driver storing objects in an Amazon Simple Storage Solution (S3) bucket.
+- [azure](storage-drivers/azure.md): A driver storing objects in [Microsoft Azure Blob Storage](http://azure.microsoft.com/en-us/services/storage/).
 
 Storage Driver API
 ==================