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. Locate the text red referring to the about page on the code below.
  4. Replace it with the link to your page.
  5. Paste the code below your profile text.
<div class="about-more"><a href="/p/about-me.html">read more</a></div>

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