[ios][docs] Add information about IntentsExtension

Bug: none
Change-Id: I35de548c3b7c59173e4569930fe5b29621accd40
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3250905
Commit-Queue: Sylvain Defresne <[email protected]>
Commit-Queue: Olivier Robin <[email protected]>
Auto-Submit: Sylvain Defresne <[email protected]>
Reviewed-by: Olivier Robin <[email protected]>
Cr-Commit-Position: refs/heads/main@{#936331}
diff --git a/docs/ios/build_instructions.md b/docs/ios/build_instructions.md
index a90c4ba..ab1815cd 100644
--- a/docs/ios/build_instructions.md
+++ b/docs/ios/build_instructions.md
@@ -171,6 +171,7 @@
 -   `${prefix}.chrome.ios.dev`
 -   `${prefix}.chrome.ios.dev.ContentTodayExtension`
 -   `${prefix}.chrome.ios.dev.CredentialProviderExtension`
+-   `${prefix}.chrome.ios.dev.IntentsExtension`
 -   `${prefix}.chrome.ios.dev.SearchTodayExtension`
 -   `${prefix}.chrome.ios.dev.ShareExtension`
 -   `${prefix}.chrome.ios.dev.TodayExtension`