seed: curriculum content

1.solar-system/1.welcome/13.the-saver/index.md

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+---
+type: challenge
+title: "The Saver"
+xp: 75
+duration: 25
+difficulty: 2
+---
+
+# The Saver
+
+> **[INCOMING — Mission Control, Earth]**
+>
+> Cadet, snapshots. Git's whole purpose is to capture *commits* —
+> snapshots of your work — that you can return to later.
+>
+> The flow per commit:
+>
+> 1. Create or modify a file
+> 2. `git add <file>` — stage it
+> 3. `git commit -m "<message>"` — lock it in
+>
+> When your script runs, a clean Git repo with identity already set
+> sits in the working directory. Make three commits, in this exact
+> order:
+>
+> 1. Create `a.txt` with `alpha`. Commit message: `add alpha`
+> 2. Create `b.txt` with `beta`.  Commit message: `add beta`
+> 3. Create `c.txt` with `gamma`. Commit message: `add gamma`
+>
+> [END TRANSMISSION]
+
+## Your Task
+
+In `starter/starter.sh`, run six commands per the flow above (one
+echo + add + commit per file).
+
+## Objectives
+
+- `a.txt`, `b.txt`, `c.txt` exist with `alpha`, `beta`, `gamma`
+- `git log` shows exactly 3 commits
+- Commit messages: `add alpha`, `add beta`, `add gamma` in order