subtree.txt can be use as a script

diff --git a/libs/subtree.txt b/libs/subtree.txt
old mode 100644 (file)
new mode 100755 (executable)
index 2de0209..48727ba
--- a/libs/subtree.txt
+++ b/libs/subtree.txt
@@ -1,5 +1,9 @@
 # Subtrees
 
-One subtree is used for this program:
-       ```git subtree add -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree```
+# One subtree is used for this program:
+#      ```git subtree add -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree```
+
+# Update all subtrees:
+
+git subtree pull -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree