To edit your About widget:
  1. Go to Layout on the Blogger dashboard vertical menu.
  2. Locate the About or Profile area.
  3. Open the Image gadget.
  4. Replace the photo with your own.
  5. Paste the URL link of your about blog page (optional).
  6. Save the changes.
  7. Open the Text gadget referring to the profile description.
  8. Replace the demo text with your own.
  9. Save the changes.

Adding the read more link

  1. Open the Text gadget referring to the profile description.
  2. If you are on the Rich Text tab, switch to Edit Html.
  3. Copy the code below and paste it on your profile text widget.
  4. Locate the red text referring to the about page link.
  5. Replace it with the link to your page.
<div class="about-more"><a href="/p/about-me.html">read more</a></div>

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