Check status: jj status
We have a repo with a README and TODO list. Check the current state first.
● Check status: `jj status`
○ Create a bookmark: `jj bookmark create my-feature`
○ List bookmarks: `jj bookmark list`
○ Start a new change from a bookmark: `jj new my-feature`
○ Add some work: `echo "Experiment" > experiment.txt`
○ Move the bookmark forward: `jj bookmark move my-feature`
○ Check the log: `jj log`