Rename chapters into "internals" and "intro"

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Sebastian Morr 2020-10-01 15:03:02 +02:00
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levels/internals/tree-nested

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Trees can also point to other trees! This way, they can describe nested directory structures.
When you add a file inside of a directory to the index, and then call `git write-tree`, it will create a nested tree for the directory, and attach the blob to it.
To solve this level, build a little stick figure, as shown on the left - a tree that points to two blobs, as well to a tree that points to two blobs.