docs/config: correct HTML anchor

Surrounding the paragraph with this HTML anchor prevents the paragraph
from being rendered. Links to this location still work like this.

Change-Id: Ie4e85faecbd640c2d006b9abb95abe72e8d14870

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 7fe9e15..2d02022 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -18,9 +18,9 @@
   ssh-keygen -m PEM -t rsa -C "your_email@example.com"
 ```
 
-<a name="example_file">
+<a name="example_file"></a>
 Next, create `$site_path/etc/replication.config` as a Git-style config
-file, for example to replicate in parallel to four different hosts:</a>
+file, for example to replicate in parallel to four different hosts:
 
 ```
   [remote "host-one"]