-One subtree is used for this program:
- ```git subtree add -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree```
+# The subtrees used for this program:
+# ```git subtree add -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree```
+# ```git subtree add -P src/jexer git@github.com:nikiroo/jexer.git subtree```
+
+# Update all subtrees:
+
+#git subtree pull -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree
+#git subtree pull -P src/jexer git@github.com:nikiroo/jexer.git subtree
+
+# Push all subtrees:
+
+git subtree push -P src/be/nikiroo/utils git@github.com:nikiroo/nikiroo-utils.git subtree
+git subtree push -P src/jexer git@github.com:nikiroo/jexer.git subtree