Update docker/nginx/README.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
4 days ago · 1f19570206
1 changed files with 1 additions and 1 deletions
--- a/docker/nginx/README.md
+++ b/docker/nginx/README.md
@ -80,8 +80,8 @@ server {

    # Health check endpoint
    location /health {
-        return 200 "OK\n";
        add_header Content-Type text/plain;
+        return 200 "OK\n";
    }
 }
 ```