Merge pull request #54 from MozillaSocial/fix/glean-readme

fix(readme): add build:glean to setup steps, add notes re: telemetry

README.md

@@ -116,6 +116,7 @@ Clone the repository and run on the root folder:
 
 ```
 pnpm i
+pnpm run build:glean
 pnpm run dev
 ```
 
@@ -125,9 +126,16 @@ We recommend installing [ni](https://github.com/antfu/ni#ni), that will use the
 
 ```
 ni
+nr build:glean
 nr dev
 ```
 
+### Telemetry
+
+*Note: This section is a work in progress.*
+
+We are using [glean.js](https://github.com/mozilla/glean.js/) for analytics tracking. Build the necessary generated files by running the `build:glean` script before starting your server.
+
 ### Testing
 
 Elk uses [Vitest](https://vitest.dev). You can run the test suite with: