Add function and alias usage to README

This adds a small description of the added functionalities to the README. Signed-off-by: Paul Mabileau <[email protected]>
tamcore · Jun 18, 2020 · c0c1c0e · c0c1c0e
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diff --git a/README.md b/README.md
@@ -26,3 +26,9 @@ Changed command: (checks daily for updates)
 # Uncomment the following line to change how often to auto-update (in days).
 export UPDATE_ZSH_DAYS=1
 ```
+
+Another possibility is to use the provided upgrade function, which one may call
+at any time using `upgrade_oh_my_zsh_custom`. There shouldn't be any difference
+with the automatic operation. Also, a convenient alias that calls the OhMyZsh
+update function `upgrade_oh_my_zsh` and then `upgrade_oh_my_zsh_custom`, called
+`update_ohl_my_zsh`, is available as well.