Hyperlint Automation Fix

Author: hyperlint-ai[bot]

src/content/docs/stream/edit-videos/adding-captions.mdx

@@ -17,7 +17,7 @@ To create or modify a caption on a video a [Cloudflare API Token](https://www.cl
 
 The `<LANGUAGE_TAG>` must adhere to the [BCP 47 format](http://www.unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers). For convenience, many common
 language codes are provided [at the bottom of this document](#most-common-language-codes).
-If the language you are adding isn't included in the table, you can find the value
+If the language you are adding is not included in the table, you can find the value
 through the [The IANA registry](https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry), which maintains a list of language codes. To find the
 value to send, search for the language. Below is an example value from IANA when
 we look for the value to send for a Turkish subtitle:
@@ -47,7 +47,7 @@ to generate closed captions for your videos.
 A video must be uploaded and in a ready state before captions can be generated.
 In the following example URLs, the video's UID is referenced as `<VIDEO_UID>`.
 To receive webhooks when a video transitions to ready after upload, follow the
-instructions provided [here](/stream/manage-video-library/using-webhooks/).
+instructions provided in the guide on using webhooks to manage your video library.
 
 Captions can be generated for the following languages: