Update license in readme of the store package (#3990)

Looks like some leftovers when we switched away from apache. Did a full
text search and didn't find any other references to apache.

### Change Type

<!-- ❗ Please select a 'Scope' label ❗️ -->

- [ ] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [x] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff

<!-- ❗ Please select a 'Type' label ❗️ -->

- [ ] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [x] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know

### Release Notes

- Fix the license in the readme file for the store package.

packages/store/README.md

@@ -343,4 +343,6 @@ A diff describing the changes to a collection.
 
 ## License
 
-The source code in this repository (as well as our 2.0+ distributions and releases) are currently licensed under Apache-2.0. These licenses are subject to change in our upcoming 2.0 release. If you are planning to use tldraw in a commercial product, please reach out at [hello@tldraw.com](mailto://hello@tldraw.com).
+The tldraw source code and its distributions are provided under the [tldraw license](https://github.com/tldraw/tldraw/blob/main/LICENSE.md). This license does not permit commercial use.
+
+If you wish to use this project in commercial product, you need to purchase a commercial license. To obtain a commercial license or learn more, please fill out [this form](https://forms.gle/PmS4wNzngnbD3fb89).