Missing quotes in api wiki

[AureliaDolo]

• https://github.com/massalabs/massa/wiki/api#get_cliques
• https://github.com/massalabs/massa/wiki/api#get_block
• https://github.com/massalabs/massa/wiki/api#get_graph_interval
• https://github.com/massalabs/massa/wiki/api#get_addresses

[Noxhaa]

Done