Update samples/drivers/dali/README.rst

Fix a typo.

Co-authored-by: Benjamin Cabé <[email protected]>

Author: SvenHaedrich

samples/drivers/dali/README.rst

@@ -1,5 +1,5 @@
 .. zephyr:code-sample:: dali
-   :name: Digital Addressabel Lighting Interfac (DALI)
+   :name: Digital Addressable Lighting Interface (DALI)
    :relevant-api: dali
 
    Blinky sample using the DALI bus to blink LED drivers.