Updates for how to source "mo" and then use it

When you source mo, it adds the "mo" function to the environment.

run-tests

@@ -2,6 +2,7 @@
 
 cd "$(dirname $0)"
 
+. ./mo
 PASS=0
 FAIL=0
 
@@ -11,7 +12,7 @@ for TEST in tests/*.expected; do
     echo -n "$BASE ... "
     echo "Do not read this input" | (
         . "${BASE}.env"
-        . ./mo "${BASE}.template"
+        mo "${BASE}.template"
     ) | diff -wU5 - "${TEST}" > "${BASE}.diff"
 
     if [[ $? -ne 0 ]]; then