Resize images

[Genevieve Buckley]

The images in this blogpost appear way too large. The size should be reduced so they fit comfortably. This might be happening on other posts (especially other posts of mine) too.

There are two possible approaches to fix this:

1. Use html syntax instead of markdown <img src="image/file.jpg" alt="alt text" width="700"> with a maximum width of 700 pixels (this seems to be roughly the same `
2. Reduce the resolution of the image files and commit those with git (additional benefit, slightly smaller repository size).