Images won’t appear in my lecture titles

I’m creating my online course through Teachable.com, and I’m trying to find the right code to add images to lecture titles for my driver’s ed students. This is the concept I wanted for my course–https://drive.google.com/open?id=1wvdy-lE60-B4P6GNK4uRQhC4TBs5_4-S

I inserted a following code to my lecture title:
<img src=”https://upload.wikimedia.org/wikipedia/commons/8/81/Stop_sign.png” style=”width:10%;height:10%;”>

Here’s what I have done:

Step 1: https://drive.google.com/open?id=1qLjDxJsnnPqAPrKgFhKt-imxkYwL7z1A

Step 2: https://drive.google.com/open?id=1xJUVdmGD2mziAkAmKYAJUYV9jMAP8Jwv

Step 3: https://drive.google.com/open?id=1fUFjb749FUFiPs8tYl1F7c-7dwSAHRqR

Step 4: https://drive.google.com/open?id=1d5Oe7pg8iw6hq4s0BSdHeqO7PchOBnkU

Step 5: https://drive.google.com/open?id=1RkAn822JRWw3JOX0D4pFJvzVeDp7dEsK

The image won’t show in the lecture title. Any idea?

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