Update changelog and readme

CHANGELOG.md

@@ -10,6 +10,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Made radio buttons rounder in `--ascii-only` mode, using parentheses instead of square brackets.
+- Moved some code out of the huge `paint.py` into smaller files.
+
+### Added
+
+- Replaced a complex shell one-liner on the readme with a new ANSI art gallery app. You can run it from the repo root, with: `python -m src.textual_paint.gallery`
+- Textual Paint now uses `pytest-textual-snapshot` and has tests covering most of the UI surface. This will allow me to update dependencies and do major restructuring of the code with confidence.
+- I created a test recorder, which can generate test code, which is great for creating interactions with the canvas.
+- Added docstrings to most of the code, where it was missing.
+
+### Fixed
+
+- Fixed behavior of Free-Form Select tool when melding with the canvas, when the selection was off-screen to the left or top (i.e. with negative coordinates).
 
 ## [0.2.0] - 2023-09-05
 

README.md

@@ -378,6 +378,12 @@ mypy src --no-namespace-packages --check-untyped-defs
 pytest
 # To accept differences, update the baseline with:
 pytest --snapshot-update
+# I also made a test recorder, which can generate test code, which is great for creating tests that interact with the canvas.
+# Run with:
+python tests/pilot_recorder.py
+# Then interact with the app, and press Ctrl+C to stop recording.
+# You can also hit Ctrl+R to replay what you have,
+# or Ctrl+Z to remove the last step and replay the rest.
 ```
 
 ## License

cspell.json

@@ -50,6 +50,7 @@
 		"DIALOGEX",
 		"disambiguates",
 		"dockable",
+		"docstrings",
 		"domtree",
 		"Dunder",
 		"emacsclient",