Correct INSERT examples

README.md

@@ -55,7 +55,7 @@ where `curl` is the [well known command-line tool](http://curl.haxx.se/). Passin
 To insert an entry into the database, execute a second SQL command:
 
     curl -L -XPOST 'localhost:4001/db?pretty&explain' -d '[
-        "INSERT INTO foo(name) VALUES('fiona')"
+        "INSERT INTO foo(name) VALUES(\"fiona\")"
     ]'
 
 The use of the URL param `pretty` is optional, and results in pretty-printed JSON responses. `explain` is also optional. If included, the response will include some basic information about the processing that took place -- how long it took, for example.
@@ -75,16 +75,16 @@ Note that this is the SQLite file that is under `node 3`, which is not the node
 Bulk updates are supported. To execute multipe statements in one HTTP call, simply include the statements in the JSON array:
 
     curl -L -XPOST 'localhost:4001/db?pretty' -d '[
-        "INSERT INTO foo(name) VALUES('fiona')",
+        "INSERT INTO foo(name) VALUES(\"fiona\")",
-        "INSERT INTO foo(name) VALUES('sinead')"
+        "INSERT INTO foo(name) VALUES(\"sinead\")"
     ]'
 
 #### Transactions
 Transactions are supported. To execute statements within a transaction, add `transaction` to the URL. An example of the above operation executed within a transaction is shown below.
 
     curl -L -XPOST 'localhost:4001/db?pretty&transaction' -d '[
-        "INSERT INTO foo(name) VALUES('fiona')",
+        "INSERT INTO foo(name) VALUES(\"fiona\")",
-        "INSERT INTO foo(name) VALUES('sinead')""
+        "INSERT INTO foo(name) VALUES(\"sinead\")""
     ]'
 
 When a transaction takes place either both statements will succeed, or neither. Performance is *much, much* better if multiple SQL INSERTs or UPDATEs are executed via a transaction.