rst fix

src/vmod_weightadjust.vcc

@@ -21,7 +21,8 @@ Description
 	The "testable" random generator in varnishd is used, which
 	enables deterministic tests to be run (See: d00004.vtc).
 
-Example
+Example::
+
 	new vdir = directors.random();
 
 $Method VOID .add_backend(BACKEND backend, REAL weight,
@@ -61,7 +62,8 @@ Description
 	response (headers and body) to scan with the *weight_update*
 	regular expression.
 
-Example
+Example::
+
 	vdir.add_backend(backend1, 10.0,
 			 "^X-Weight: *(\d+\.\d+)", "/get-weight.php")
 	vdir.add_backend(backend2,  2.0,
@@ -71,7 +73,8 @@ $Method VOID .remove_backend(BACKEND backend)
 
 Description
 	Remove a backend from the director.
-Example
+
+Example::
 	vdir.remove_backend(backend1);
 	vdir.remove_backend(backend2);