Update quota_information.md

doc/quota_information.md

@@ -56,7 +56,7 @@ SELECT * FROM cdb_service_quota_info();
 
 Result:
 
-```
+```sql
     service     | monthly_quota | used_quota | soft_limit |     provider
 ----------------+---------------+------------+------------+------------------
  isolines       |           100 |          0 | f          | mapzen
@@ -102,7 +102,7 @@ SELECT COUNT(*) FROM {tablename} WHERE {street_name_column} IS NOT NULL;
 
 Result: here's a sample result of 10000 records:
 
-```
+```sql
  count
 -------
   10000
@@ -118,7 +118,7 @@ SELECT cdb_enough_quota('hires_geocoder', {number_of_records});
 
 The result is similar to the following:
 
-```
+```sql
  cdb_enough_quota
 ------------------
  t