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1 files changed, 5 insertions, 0 deletions

diff --git a/Readme.md b/Readme.md
index 15580d5e..a036ff46 100644
--- a/Readme.md
+++ b/Readme.md
@@ -207,6 +207,8 @@ Yet another example forks two 'routines' that communicate over a channel:
 
   # The exact order above might shift over time, but you'll never see a number
   # consumed before it's produced.
+
+  error - deadlock detected
 ```
 
 Channels are the unit of synchronization in mu. Blocking on channels are the
@@ -220,6 +222,9 @@ random memory locations. Bounds checking is baked deeply into the semantics,
 and pointer arithmetic will be mostly forbidden (except inside the memory
 allocator and a few other places).
 
+Notice also the error at the end. Mu can detect deadlock when running tests:
+routines waiting on channels that nobody will ever write to.
+
 ---
 
 Try running the tests: