Remove double can. Thanks @zuyu for catching this.
diff --git a/README.md b/README.md
index cfb263c..430777f 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@
     INSERT INTO Weather VALUES (2, '2015-11-1', 60, 50);

     ```

 

-11. We can now can issue SQL queries such as:

+11. We can now issue SQL queries such as:

   a. Find all weather records for California:

   ```

   SELECT * FROM WEATHER W, City C WHERE C.cid = W.cid AND C.state = 'CA';