diff --git a/README.md b/README.md
index e6aee37..5aa5196 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ summary of the status of Machi's major components.
 * Humming Consensus and the chain manager
   * No new safety bugs have been found by model-checking tests.
   * A new document,
-    [Hand-on experiments with Machi and Humming Consensus](doc/humming-consensus-demo.md)
+    [Hands-on experiments with Machi and Humming Consensus](doc/humming-consensus-demo.md)
     is now available.  It is a tutorial for setting up a 3 virtual
     machine Machi cluster and how to demonstrate the chain manager's
     reactions to server stops & starts, crashes & restarts, and pauses
diff --git a/doc/humming-consensus-demo.md b/doc/humming-consensus-demo.md
index f92858f..2423458 100644
--- a/doc/humming-consensus-demo.md
+++ b/doc/humming-consensus-demo.md
@@ -1,11 +1,11 @@
 
 # Table of contents
 
-* [Hand-on experiments with Machi and Humming Consensus](#hands-on)
+* [Hands-on experiments with Machi and Humming Consensus](#hands-on)
 * [Using the network partition simulator and convergence demo test code](#partition-simulator)
 
 <a name="hands-on">
-# Hand-on experiments with Machi and Humming Consensus
+# Hands-on experiments with Machi and Humming Consensus
 
 ## Prerequisites