Fix references from 'packages/*' to 'platform/*' in READMEs (#23498)

webapp/README.md

@@ -11,7 +11,7 @@ To interact with a workspace using npm, such as to add a dependency or run a scr
 npm add react --workspace=boards
 
 # Build multiple packages
-npm run build --workspace=packages/client --workspace=packages/components
+npm run build --workspace=platform/client --workspace=platform/components
 
 # Test all workspaces
 npm test --workspaces
@@ -25,4 +25,4 @@ To install dependencies for a workspace, simply run `npm install` from this fold
 ## Useful Links
 
 - [Developer setup](https://developers.mattermost.com/contribute/developer-setup/), now included with the Mattermost server developer setup
-- [Web app developer documentation](https://developers.mattermost.com/contribute/more-info/webapp/)
+- [Web app developer documentation](https://developers.mattermost.com/contribute/more-info/webapp/)

webapp/platform/client/README.md

@@ -7,8 +7,8 @@ This package contains the JavaScript/TypeScript client for [Mattermost](https://
 As a member of Mattermost with write access to our NPM organization, you can build and publish this package by running the following commands:
 
 ```bash
-npm run build --workspace=packages/client
-npm publish --workspace=packages/client
+npm run build --workspace=platform/client
+npm publish --workspace=platform/client
 ```
 
 Make sure to increment the version number in `package.json` first! You can add `-0`, `-1`, etc for pre-release versions.

webapp/platform/components/README.md

@@ -19,6 +19,6 @@ npm run build
 or from the root of the webapp with
 
 ```bash
-npm run build --workspace=packages/mattermost
+npm run build --workspace=platform/components
 ```
 

webapp/platform/types/README.md

@@ -29,8 +29,8 @@ In your Jest config, you can use the `moduleNameMapper` field to add that alias.
 As a member of Mattermost with write access to our NPM organization, you can build and publish this package by running the following commands:
 
 ```bash
-npm run build --workspace=packages/types
-npm publish --workspace=packages/types
+npm run build --workspace=platform/types
+npm publish --workspace=platform/types
 ```
 
 Make sure to increment the version number in `package.json` first! You can add `-0`, `-1`, etc for pre-release versions.