DirtFarmer wrote:
Open your email program just like you want to send a text email. You can add text, but it's not required.
Look for a button marked "attach" or "add attachment". Click that and you will get a dialog that will allow you to navigate to the folder containing your photo. Click on the photo and hit "OK". then send the email.
Your information is correct, but the OP wanted to email starting in Lightroom, so it's necessary to export before performing the steps you cited.