In short this means that the photo can be used by anyone for any purpose. No attribution is necessary.
ⵙ ⵓⵣⴳⵣⵍ ⵉⴳⴰ ⵓⵏⴰⵎⴽ ⵏ ⵓⵢⴰⴷ ⵎⴰⵙ ⵉⵥⴹⴰⵕ ⴽⵓ ⵢⴰⵏ ⴰⴷ ⵉⵙⵙⵎⵔⵙ ⵜⴰⵡⵍⴰⴼⵜ ⴷⵉ ⴽⵓ ⴰⵙⴽⴽⵉⵏ. ⵓⵔ ⵜⵍⵍⵉ ⴽⵔⴰ ⵏ ⵜⵉⴽⴽⵉ ⵉⵍⴰⵣⵎ.