Update learner working-dir path to ~/ai-workflow-course after rename (#73)

Co-authored-by: claude <claude@jpaul.io>
Co-committed-by: claude <claude@jpaul.io>

modules/08-remotes-and-hosting/README.md

@@ -88,7 +88,7 @@ the shape is the same:
 3. Point your local repo at it and push:
 
    ```bash
-   cd ~/workflow-course/tasks-app
+   cd ~/ai-workflow-course/tasks-app
    git remote add origin <URL-you-copied>
    git push -u origin main
    ```
@@ -313,7 +313,7 @@ WSL, or Git Bash on Windows. Continues the `tasks-app` repo from Module 2.
 2. Point your repo at the remote and push:
 
    ```bash
-   cd ~/workflow-course/tasks-app
+   cd ~/ai-workflow-course/tasks-app
    git remote -v                 # probably empty — no remote yet
    git remote add origin <URL>   # paste the URL you copied
    git remote -v                 # now origin shows, for fetch and push
@@ -346,7 +346,7 @@ independent* copy, history and all — not a snapshot.
 5. Now clone the remote into a *separate* directory, as if you were a teammate on a fresh machine:
 
    ```bash
-   cd ~/workflow-course
+   cd ~/ai-workflow-course
    git clone <URL> tasks-app-teammate
    cd tasks-app-teammate
    git log --oneline             # the ENTIRE history is here — every commit, not just the latest
@@ -360,7 +360,7 @@ independent* copy, history and all — not a snapshot.
 
    ```bash
    # from your original repo:
-   bash ~/workflow-course/tasks-app/verify-backup.sh   # (copied from lab/verify-backup.sh)
+   bash ~/ai-workflow-course/tasks-app/verify-backup.sh   # (copied from lab/verify-backup.sh)
    ```
 
    The script confirms (a) you have a remote configured, (b) your local branch is fully pushed
@@ -379,7 +379,7 @@ independent* copy, history and all — not a snapshot.
 7. Edit the README in your *teammate* clone, commit, and push from there:
 
    ```bash
-   cd ~/workflow-course/tasks-app-teammate
+   cd ~/ai-workflow-course/tasks-app-teammate
    # edit README.md, then:
    git add . && git commit -m "Note the remote in the README"
    git push
@@ -388,7 +388,7 @@ independent* copy, history and all — not a snapshot.
 8. Back in your *original* repo, pull it down:
 
    ```bash
-   cd ~/workflow-course/tasks-app
+   cd ~/ai-workflow-course/tasks-app
    git fetch                          # download the new commit, but don't merge yet
    git log main..origin/main          # SEE exactly what's incoming before you take it
    git pull                           # now merge it into your local main