transparent images where possible for dark mode

content/notes/cool-bash-tricks-for-your-terminal-dotfiles/index.md

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   - Tutorial
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   - /2018/12/10/cool-bash-tricks-for-your-terminal-dotfiles/
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+image: "images/terminal.png"
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-{{< image src="images/terminal_icon.jpg" width="300" alt="Terminal.app on macOS" />}}
+{{< image src="images/terminal.png" width="240" alt="Terminal.app on macOS" />}}
 
 
 You may have noticed the recent trend of techies [posting their "dotfiles" on GitHub](https://github.com/topics/dotfiles) for the world to see. These usually contain shortcuts compatible with Bash terminals to automate convoluted commands that, I'll admit, I needed to Google every single time.

content/notes/how-to-pull-request-fork-github/index.md

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-{{< image src="images/forks.png" alt="Git Forks Visualization" />}}
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 Contributing to an open-source project can be intimidating at first. The convoluted process of submitting your improvements for approval via a [**pull request**](https://help.github.com/en/articles/about-pull-requests) certainly doesn't help.