Add quotes to example SQL insert

[jdavidpeery]

In Lab 3, the first SQL insert statement is the following -

insert into crops (crop_name, maturity_date) values (carrot, 70);

which I believe? should be changed to -

insert into crops (crop_name, maturity_date) values ('carrot', 70);

, adding single quotes around carrot, otherwise it didn't work on my MacOS SQLite3

[jdavidpeery]

@tame0001

[tame0001]

It should have quote. My mistake. Fixed.