Fix typo and match second quickstart example to first

- Fix "do you work" → "do your work"
- Reformat new-repo quickstart to use same multi-line style

README.md

@@ -9,13 +9,25 @@ useful prompts for working with large language models.
 Bring an existing repo up to standards (run from within the repo):
 
 ```bash
-P=$(mktemp -d) && git clone --depth 1 https://git.eeqj.de/sneak/prompts.git "$P" && claude "Read $P/prompts/REPO_POLICIES.md and $P/prompts/EXISTING_REPO_CHECKLIST.md, then bring this repo up to those standards."
+export TD="$(mktemp -d)"
+export INSTRUCTIONS="Read $TD/prompts/REPO_POLICIES.md and
+$TD/prompts/EXISTING_REPO_CHECKLIST.md, then bring this repo up to those
+standards. Be very careful to follow the policies yourself while
+making these changes, ie: do your work on a feature branch, make each
+change as a separate commit, make a formatting commit up front, et cetera."
+git clone --depth 1 https://git.eeqj.de/sneak/prompts.git "$TD" && claude "$INSTRUCTIONS"
 ```
 
 Start a new repo from scratch:
 
 ```bash
-P=$(mktemp -d) && git clone --depth 1 https://git.eeqj.de/sneak/prompts.git "$P" && claude "Read $P/prompts/REPO_POLICIES.md and $P/prompts/NEW_REPO_CHECKLIST.md, then set up this new repo according to those standards."
+export TD="$(mktemp -d)"
+export INSTRUCTIONS="Read $TD/prompts/REPO_POLICIES.md and
+$TD/prompts/NEW_REPO_CHECKLIST.md, then set up this new repo according
+to those standards. Be very careful to follow the policies yourself while
+making these changes, ie: do your work on a feature branch, make each
+change as a separate commit, et cetera."
+git clone --depth 1 https://git.eeqj.de/sneak/prompts.git "$TD" && claude "$INSTRUCTIONS"
 ```
 
 ## Getting Started