Add the code to post footer on Blog settings > Advanced.

Please note that text longer than 250 characters will be cropped. This has been fixed in development version already.

There's also a "Like" plugin somewhere on this forum.

Will this enable html code or is it limited to text?

The field is limited to 250 symbols no matter what you put there.

You can easily lift this limit though
http://forums.b2evolution.net//viewtopic.php?p=108366#108366

How do I run this query. (I really apologize as I am somewhat of a programming novice. The account is with GoDaddy so I would assume that I would login there. I am simply unfamiliar with the "how" of running a query.

Much thanks. You are extremely helpful and I appreciate your time.

The easiest way is to add this code in admin.php file on line 63 in blog root directory

// Check global permission:
if( ! $current_User->check_perm( 'admin', 'restricted' ) )
{	// No permission to access admin...
	require $adminskins_path.'_access_denied.main.php';
}

// Run SQL query
$DB->query('ALTER TABLE T_coll_settings MODIFY COLUMN cset_value VARCHAR(10000) NULL');

Open any admin page to run the query, then delete the code.