Installing Jquery in Brackets

I started to read Jquery for dummies and tried to install and failed.
I just can t install this. Can somebody help me? Every time I put something from Jquery in a script it won’t work cause it can t load gif. Help !!

why this code won t work


<script type="text/javascript">
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Mollitia, nesciunt totam similique quisquam recusandae veniam.

what s wrong here???

or here