Broken links in A8 Rules DSL doc

[frankbu]

Recent additions to the Rules DSL doc:

+            * [route.backends.resilience](#route-backends-resilience)
+            * [route.backends.lbtype])(#route-backends-lbtype)
+        * [route.httpreqtimeout](#route.httpreqtimeout)
+        * [route.httpreqretries](#route.httpreqretries)
+        * [route.uri](#route.uri)

don't work properly (display and links and broken).