diff --git a/docs/src/concepts.dox b/docs/src/concepts.dox
index e1d5f6156..6ddc8035f 100644
--- a/docs/src/concepts.dox
+++ b/docs/src/concepts.dox
@@ -174,7 +174,42 @@
  * eligible for execution then they are executed in a round-robin way, the
  * CPU time slice constant is configurable. The ready list is a double linked
  * list of threads ordered by priority.<br><br>
- * @image html readylist.png
+ * @dot
+  digraph example {
+    rankdir="LR";
+
+    node [shape=square, fontname=Helvetica, fontsize=8,
+          fixedsize="true", width="0.6", height="0.5"];
+    edge [fontname=Helvetica, fontsize=8];
+
+    subgraph cluster_running {
+      node [shape=square, fontname=Helvetica, fontsize=8,
+            fixedsize="true", width="0.6", height="0.5"];
+      currp [label="'currp'\npointer", style="bold"];
+      T4 [label="Tuser(4)\nprio=100"];
+      label = "Currently Running Thread";
+      penwidth = 0;
+    }
+
+    subgraph cluster_rlist {
+      node [shape=square, fontname=Helvetica, fontsize=8,
+            fixedsize="true", width="0.6", height="0.5"];
+      rh [label="ready list\nheader\nprio=0", style="bold"];
+      Ti [label="Tidle\nprio=1"];
+      Tm [label="Tmain\nprio=64"];
+      T1 [label="Tuser(1)\nprio=32"];
+      T2 [label="Tuser(2)\nprio=32"];
+      T3 [label="Tuser(3)\nprio=80"];
+      label = "Threads Ready for Execution";
+      penwidth = 0;
+    }
+
+    currp -> T4
+    rh -> Ti -> T1 -> T2 -> Tm -> T3 -> rh [label="p_next"];
+    rh -> T3 -> Tm -> T2 -> T1 -> Ti -> rh [label="p_prev"];
+  }
+ * @enddot
+ * <br>
  * Note that the currently running thread is not in the ready list, the list
  * only contains the threads ready to be executed but still actually waiting.
  *
diff --git a/readme.txt b/readme.txt
index 1da146276..b2d0a354b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -64,7 +64,7 @@
   objects (bug 2952961).
 - FIX: Wrong prototype in template file chcore.c (bug 2951529)(backported
   in 1.4.1).
-- NEW: Added an experimental PowerPC port targeting the SPC563M64/MPC563x
+- NEW: Added an experimental PowerPC port targeting the SPC563M/MPC563xM
   ST/Freescale automotive SOCs. The port passed the whole test suite but it
   will be developed further in next releases.
 - NEW: Added core variant name macro in chcore.h and platform name in