Credit: How to add an image to a gist
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Create or find a gist that you own.
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Clone your gist (replace
<hash>
with your gist's hash):# with ssh git clone [email protected]:<hash>.git mygist # with https git clone https://gist.github.com/<hash>.git mygist
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Change to your gist’s directory:
cd mygist
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Add and commit the image:
git add tulip.jpg git commit -m "Add tulip to gist"
The ideal size is 844 × 200 pixels.
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Update remote:
git push origin master
On your GitHub profile page, press "Customize your pins" and find the Gist you just created.
See @nat’s twitter announcement for an animated explanation