Usage.md

@@ -114,6 +114,24 @@ onandroid -w -ce
 OR
 onandroid --twrp --compression-enable
 ```
+* By default, TWRP backup mode generates md5sum. If md5sums are not required, use it like this:
+```shell
+onandroid -w -md
+OR
+onandroid --twrp --md5-disable
+```
+
+<br />
+<br />
+
+##### update.zip Generation
+* Example:
+```shell
+onandroid -z
+OR
+onandroid --update-zip
+```
+* Note: update.zip generation, not the update.zip itself, takes almost twice the size of a normal backup size, due to overhead during zip file creation. update.zip are not compressed, stored only.
 
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