feat(getPersistableState): allow persistence via redux-persist (#37)

* All done except invalidate cacheLifetime === Infinity

* added expireAt, tests need fixing

* update snaps

* hasCacheExpired tests done

* tests OK

* feature done, needs tests

* empty paths OK

* requests tests OK

* resources tests OK

* tests done

* docs done

* fixed typos in docs

README.md

@@ -42,6 +42,8 @@ To solve the problems listed above, `redux-rest-easy` **generates actions, reduc
 
 It also provides **sensible defaults**, allowing you to use it with **almost no configuration**, but also to **customize** anything you would like.
 
+And the cherry on the top: it works seamlessly with [redux-offline](https://github.com/redux-offline/redux-offline) and [redux-persist](https://github.com/rt2zz/redux-persist)!
+
 [Scroll down](#minimal-example) for a small example, or [browse the documentation](#api) to get started! To learn more about the problem and solution, you can also read the [release article][release-article].
 
 ## API
@@ -61,6 +63,7 @@ import {
 * [connect](./docs/api/connect.md) - connect your components to the state so the magic can happen
 * [reset](./docs/api/reset.md) - reset `redux-rest-easy`'s whole state (you can reset parts of the state with actions generated by `createResource`)
 * [initializeNetworkHelpers](./docs/api/initializeNetworkHelpers.md) - provide your own network handlers (optional, fallback to included defaults)
+* [getPersistableState](./docs/api/getPersistableState.md) - transform the state before storing it, in order to later persist it (using [redux-offline](https://github.com/redux-offline/redux-offline), [redux-persist](https://github.com/rt2zz/redux-persist), or friends)
 
 ## Internals
 
@@ -70,10 +73,10 @@ import {
 
 ## Core principles
 
-1. [Preflight checks](./docs/principles/preflight.md)
-2. [Actions](./docs/principles/actions.md)
-3. [Reducers](./docs/principles/reducers.md)
-4. [Selectors](./docs/principles/selectors.md)
+1.  [Preflight checks](./docs/principles/preflight.md)
+2.  [Actions](./docs/principles/actions.md)
+3.  [Reducers](./docs/principles/reducers.md)
+4.  [Selectors](./docs/principles/selectors.md)
 
 ## Minimal Example
 
@@ -86,7 +89,7 @@ const users = createResource('users')({
   retrieve: {
     method: 'GET',
     url: 'https://my-api.com/users',
-    afterHook: () => console.log('Users retrieved successfuly'),
+    afterHook: () => console.log('Users retrieved successfully'),
   },
 });
 
@@ -178,9 +181,11 @@ Redux-rest-easy also uses [redux-thunk][redux-thunk] to handle async actions, an
 Thanks goes to these people ([emoji key][emojis]):
 
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+
 <!-- prettier-ignore -->
 | [<img src="https://avatars1.githubusercontent.com/u/15089053?v=4" width="100px;"/><br /><sub><b>Adrien HARNAY</b></sub>](https://adrien.harnay.me)<br />[📝](#blog-Zephir77167 "Blogposts") [💻](https://github.com/Brigad/redux-rest-easy/commits?author=Zephir77167 "Code") [📖](https://github.com/Brigad/redux-rest-easy/commits?author=Zephir77167 "Documentation") [🤔](#ideas-Zephir77167 "Ideas, Planning, & Feedback") [🚇](#infra-Zephir77167 "Infrastructure (Hosting, Build-Tools, etc)") [👀](#review-Zephir77167 "Reviewed Pull Requests") [⚠️](https://github.com/Brigad/redux-rest-easy/commits?author=Zephir77167 "Tests") | [<img src="https://avatars1.githubusercontent.com/u/6181446?v=4" width="100px;"/><br /><sub><b>Thibault Malbranche</b></sub>](https://github.com/Titozzz)<br />[🐛](https://github.com/Brigad/redux-rest-easy/issues?q=author%3ATitozzz "Bug reports") [💻](https://github.com/Brigad/redux-rest-easy/commits?author=Titozzz "Code") [🤔](#ideas-Titozzz "Ideas, Planning, & Feedback") [👀](#review-Titozzz "Reviewed Pull Requests") | [<img src="https://avatars3.githubusercontent.com/u/11462388?v=4" width="100px;"/><br /><sub><b>Grisha Ghukasyan</b></sub>](https://github.com/eole1712)<br />[🤔](#ideas-eole1712 "Ideas, Planning, & Feedback") | [<img src="https://avatars1.githubusercontent.com/u/569243?v=4" width="100px;"/><br /><sub><b>Aymeric Beaumet</b></sub>](https://aymericbeaumet.com)<br />[🤔](#ideas-aymericbeaumet "Ideas, Planning, & Feedback") | [<img src="https://avatars3.githubusercontent.com/u/3433722?v=4" width="100px;"/><br /><sub><b>Jess</b></sub>](https://github.com/Pinesy)<br />[🐛](https://github.com/Brigad/redux-rest-easy/issues?q=author%3APinesy "Bug reports") [📖](https://github.com/Brigad/redux-rest-easy/commits?author=Pinesy "Documentation") |
 | :---: | :---: | :---: | :---: | :---: |
+
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors][all-contributors] specification.