Fix typo in documentation

commands/quote.js

@@ -8,7 +8,7 @@ const documentation = {
     },
     "remove quote <quote_index>": {
         auth: true,
-        description: "Removes quote. Use \"list quotes\" to get the <quote_index>!"
+        description: "Removes quote. Use \"quotes\" to get the <quote_index>!"
     },
     "quotes": {
         auth: true,