Fixed spacing causing "field credentials not found in type linode.plain” error (#10752)

Signed-off-by: Ryan Lonergan <rlonergan@linode.com>

Co-authored-by: Ryan Lonergan <rlonergan@linode.com>

documentation/examples/prometheus-linode.yml

@@ -11,7 +11,7 @@ scrape_configs:
   - job_name: "node"
     linode_sd_configs:
       - authorization:
-        credentials: "<replace with a Personal Access Token with linodes:read_only, ips:read_only, and events:read_only access>"
+          credentials: "<replace with a Personal Access Token with linodes:read_only, ips:read_only, and events:read_only access>"
     relabel_configs:
       # Only scrape targets that have a tag 'monitoring'.
       - source_labels: [__meta_linode_tags]