table: allow strategy versioning

refs #1893

Change-Id: I44eb8dd319d737d786b6ce6f753ae2f9076cf9c1
diff --git a/daemon/fw/strategy.hpp b/daemon/fw/strategy.hpp
index f910383..e1ff23c 100644
--- a/daemon/fw/strategy.hpp
+++ b/daemon/fw/strategy.hpp
@@ -37,6 +37,13 @@
 class Strategy : public enable_shared_from_this<Strategy>, noncopyable
 {
 public:
+  /** \brief construct a strategy instance
+   *  \param forwarder a reference to the Forwarder, used to enable actions and accessors.
+   *         Strategy subclasses should pass this reference,
+   *         and should not keep a reference themselves.
+   *  \param name the strategy Name.
+   *         It's recommended to include a version number as the last component.
+   */
   Strategy(Forwarder& forwarder, const Name& name);
 
   virtual