Fix invalid syntax in SSH config file example

The `host` lines should not be suffixed with a colon.

Bug: Issue 2210
Change-Id: Iaeba26848d26a7d7f0c3e3d81faa89b1cbe8286f

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 6fd3122..d9662d9 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -284,11 +284,11 @@
 supports most SSH configuration options.  For example:
 
 ```
-  Host host-one.example.com:
+  Host host-one.example.com
     IdentityFile ~/.ssh/id_hostone
     PreferredAuthentications publickey
 
-  Host mirror*.us.some.org:
+  Host mirror*.us.some.org
     User mirror-updater
     IdentityFile ~/.ssh/id_pubmirror
     PreferredAuthentications publickey