[trivial] Clean up documentation of iterated search.

src/search/search_algorithms/iterated_search.cc

@@ -164,7 +164,8 @@ class IteratedSearchFeature
             "Note 1",
             "We don't cache heuristic values between search iterations at"
             " the moment. If you perform a LAMA-style iterative search,"
-            " heuristic values will be computed multiple times.");
+            " heuristic values and other per-state information will be computed"
+            " multiple times.");
         document_note(
             "Note 2",
             "The configuration\n```\n"
@@ -173,18 +174,12 @@ class IteratedSearchFeature
             "lazy_wastar([ipdb()],w=2), lazy_wastar([ipdb()],w=1)])\"\n"
             "```\nwould perform the preprocessing phase of the ipdb heuristic "
             "5 times (once before each iteration).\n\n"
-            "To avoid this, use heuristic predefinition, which avoids duplicate "
-            "preprocessing, as follows:\n```\n"
-            "--evaluator \"h=ipdb()\" --search "
-            "\"iterated([lazy_wastar([h],w=10), lazy_wastar([h],w=5), lazy_wastar([h],w=3), "
-            "lazy_wastar([h],w=2), lazy_wastar([h],w=1)])\"\n"
+            "To avoid this, use heuristic predefinition, which avoids "
+            "duplicate preprocessing, as follows:\n```\n"
+            "\"let(h,ipdb(),iterated([lazy_wastar([h],w=10), "
+            "lazy_wastar([h],w=5), lazy_wastar([h],w=3), lazy_wastar([h],w=2), "
+            "lazy_wastar([h],w=1)]))\"\n"
             "```");
-        document_note(
-            "Note 3",
-            "If you reuse the same landmark count heuristic "
-            "(using heuristic predefinition) between iterations, "
-            "the path data (that is, landmark status for each visited state) "
-            "will be saved between iterations.");
     }
 
     virtual shared_ptr<IteratedSearch> create_component(const plugins::Options &options, const utils::Context &context) const override {