From Wikitravel

Restaurant listings should be in the format below:

• Name of Restaurant, Address (extra directions if necessary), phone number (email, fax, other contact if possible), [1]. Days and times open. One to three sentences about the food, service, atmosphere, view, specialties, music, what have you. $lowprice-$highprice (extra price info).

Here's the Wiki markup:

*'''Name of Restaurant''', Address (''extra directions if necessary''), phone number (''email, fax, other contact if possible''), [http://www.restaurant.example.com/]. Days and times open. One to three sentences about the food, service, atmosphere, view, specialties, music, what have you. $lowprice-$highprice (''extra price info'').

Here's an example from Montreal:

• Ouzeri, 4690 Rue St. Denis (one block north of Avenue Mont Royal), 845-1336. Tu-Th 5PM-1AM, F-Sa 12PM-2AM. Fine Greek dining, great selection of ouzos and Greek wines. Stylish and modern. Try the flambé cheese hors d'oeuvre -- it's dramatic. $25-$35 (prix fixe menu on Friday and Saturday).

Some notes:

• Addresses should just be the street and number, not a full postal address. If the city is different (for example, in a suburb), add that, too.
• Phone numbers should be in the format as they would be dialed internationally, but in a way that shows the part that can be dialed locally.
• Days should be abbreviated (M Tu W Th F Sa Su), times should be AM and PM.
• Prices should be in the local currency.
• URLs should point to the official Web site for the restaurant and conform to Wikitravel guidelines for external links. If there's no official Web site, just leave that part out.