updated readme to provide setup instructions for local development/bootstrap

Author: fcamblor

README.md

@@ -2,17 +2,57 @@
 
 Voxxrin is your mobile conference companion.
 
+## Project bootstrap
+
+Run `npm run bootstrap` (from root folder) once for all to install every required npm dependencies and initialize your local firebase emulator environment.
+
+Then, to start both the backend (firebase emulator) and the frontend, simply run `npm run dev` from root folder.
+
+On started, you should be able to open http://localhost:5173/ to access your local voxxrin instance.
+
+## First crawler configuration
+
+Open your firestore instance (you can access it locally through http://localhost:4000/firestore/default/data) then :
+- create a new root document (`Start collection` button) with:
+  - collection id: `crawlers`
+  - document id: `sample-event`
+  - following fields:
+
+| name | type | value  |
+|------|------|--------|
+| descriptorUrl | string | `https://gist.github.com/fcamblor/6be34b50207d15f4d6202dfab780e409/raw/11661fb229ee4e0156908e2ca06d8a0c4f912619/videbays2025.json` |
+| eventFamily | string | `samples` |
+| eventId | string | `sample-event` |
+| eventName | string | `sample-event` |
+| kind | string | `single-file` |
+
+- create another root document (`Start collection` button) with:
+  - collection id: `public-tokens`
+  - document id: `familyOrganizer:samples:ffffffff-ffff-ffff-ffff-ffffffffffff`
+  - following fields:
+
+| name | type | value  |
+|------|------|--------|
+| eventFamilies | array of strings | `["samples"]` |
+| type | string | `FamilyOrganizerToken` |
+
+- Once done, trigger a crawling for this new event using following curl command:
+```
+curl --request POST --url 'http://localhost:5001/voxxrin-v3/us-central1/api/crawlers/sample-event/refreshScheduleRequest?token=familyOrganizer%3Asamples%3Affffffff-ffff-ffff-ffff-ffffffffffff'
+```
+
+You should get a successful execution summary, and should be able to see *a new event* popping on your local voxxrin instance's `Past Events` tab.
+
 ## Project structure
 
-Voxxrin is a mobile app developed using ionic / capacitor + vue, wth a serverless backend relying on several Firebase services (auth, firestore, cloud functions).
+Voxxrin is a mobile app developed using ionic / capacitor + vue, with a serverless backend relying on several Firebase services (auth, firestore, cloud functions).
 
 The mobile app is located in the `mobile` directory, and serverless firebase code is located in the `cloud` directory.
 
 Each of these directories have their own `README.md` describing how to set them up.
 
 ## Tour of the features
 
-
 Look at [Feature showcase](https://github.com/voxxrin/voxxrin3/wiki/Voxxrin-3-features-showcase) to have an overview of currently-implemented Voxxrin features.
 
 ## How to add your own conference to the list ?