From 6357b02236734bcf4de46c9e93f98d6cc45ea25c Mon Sep 17 00:00:00 2001
From: Andrew Meredith <kendru@users.noreply.github.com>
Date: Wed, 2 Dec 2015 23:41:05 -0700
Subject: [PATCH] Escape dollar signs

If this example was copied and pasted, the shell would try to interpolate `$upstream_http_docker_distribution_api_version` and `$docker_distribution_api_version`.

Signed-off-by: Andrew Meredith <andymeredith@gmail.com>
---
 docs/nginx.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/nginx.md b/docs/nginx.md
index 720ff0ee..1e43d0e3 100644
--- a/docs/nginx.md
+++ b/docs/nginx.md
@@ -74,7 +74,7 @@ upstream docker-registry {
 ## The registry always sets this header.
 ## In the case of nginx performing auth, the header will be unset
 ## since nginx is auth-ing before proxying.
-map $upstream_http_docker_distribution_api_version $docker_distribution_api_version {
+map \$upstream_http_docker_distribution_api_version \$docker_distribution_api_version {
   'registry/2.0' '';
   default registry/2.0;
 }