# Step by Step: How to Add Alt-text with Github Suggestions
Open the PR. In this example, '[Labs Blog alt text mini sprint](https://github.com/isabela-pf/quansight-labs-site/pull/2)'
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Scroll down to see list of files with missing alt-text.
Depending on your workshop, you may be assigned a number.
If you're selecting one youself, you can preview the different files in the next few steps.
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In this case, we have selected #17, 'scipy-ndimage-interpolation.md'.
The rendered page of this blogpost is [here, Making SciPy's Image Interpolation Consistent and Well Documented](https://labs.quansight.org/blog/2021/01/scipy-ndimage-interpolation/).
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Go to' **'File Changed**' tab on top of the page
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**Scroll down to your file**, scipy-ndimage-interpolation.md
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Hover over the right side.
The red left side shows the current file. The right green side will show our changes.
**Click on the '+' button**.
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You will be prompted to leave a comment. What we want is to leave a Suggestion. **Click on the '±' icon** or use the shortcut 'Ctrl' + 'G'
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You will now see the original highlighted lines
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**Modify the alt-text section**.
In this example, for markdown files (.md acronymn), the alt-text format is like such:
```
```
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You can view the rendered page by clicking on '...' icon and then '**View File**'.
This will open a preview with the images.
You can also refer back to the [rendered linked page](https://labs.quansight.org/blog/2021/01/scipy-ndimage-interpolation/).
By looking at the whole page and surrodning paragraphs, you can better understand the wider context of your image and key points to write.
For ease of workflow, it is recommended to have two tabs or windows open so that you can view both the preview and your comment.
Note: **This preview does not work for rst files**. For rst files, please refer to the rendered page linked in the PR back in the 'Conversation' tab.
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Once you're done, click on '**Add review comment**' button
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You will see your Suggestion.
If you scroll back to the top of the page and click on the '**Conversations**' tab,
You will see your suggestion
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From here, you can add replies to other people's Suggestions, learning from each other and giving each other feedback!
If you want to edit your Suggestion, you can with 'Edit'
Towards the end of the workshop, the host will review some of the comments via screen-share.
Some time after the workshop is over, a reviewer will merge the Suggestions into the main repository.
Congratulations! You've applied your newly-gained skills and made the open-source a better place!
Perhaps you also made your first Github or first open-source contribution. We hope this workshop opens the doors to more contributions and commits in your future!
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