Update runtime files
diff --git a/runtime/doc/version8.txt b/runtime/doc/version8.txt
index 951a307..f7dc1fc 100644
--- a/runtime/doc/version8.txt
+++ b/runtime/doc/version8.txt
@@ -76,7 +76,7 @@
Also asynchronous are timers. They can fire once or repeatedly and invoke a
function to do any work. For example: >
let tempTimer = timer_start(4000, 'CheckTemp')
-This will call the CheckTemp() function four seconds (4000 milli seconds)
+This will call the CheckTemp() function four seconds (4000 milliseconds)
later. See |timer_start()|.