Having problem with if statement

Could someone help me out with this if statement? It's supposed to get a person's website, but it isn't working when I run it.

website=""
echo "Would you like to enter a website? Enter Yes/No"
read choice
if ["$choice" == "Yes"]
then
while ["$website" == ""]
do
echo "Please enter a website:";
read website;
done
else
website="None"
fi

Use spaces before and after the [ and ] characters

website=""
echo "Would you like to enter a website? Enter Yes/No"
read choice
if [ "$choice" == "Yes" ]
then
    while [ "$website" == "" ]
    do
        echo "Please enter a website:";
        read website;
    done
else
    website="None"
fi     

And you don't need == when = would do.

And please use CODE-TAGS. And also say what's not working rather than just "it's not working".

When I try to run this script and enter 'Yes', I get the following error:

webscript.sh: line 4: [Yes: command not found

This is after the change I suggested?

Just tried it and it worked, thank you.