Update index.bs

Co-authored-by: Jan-Ivar Bruaroey <[email protected]>

Author: youennf

index.bs

@@ -106,7 +106,7 @@ Streams backpressure can optimize throughput while limiting processing and memor
 This proves useful in contexts where reliability is essential and latency is less of a concern.
 On the other hand, WebRTC media pipelines favour low latency over reliability, for instance by allowing to drop frames at various places and by using recovery mechanisms.
 Buffering within a transform would add latency without allowing web applications to adapt much.
-The User Agent is responsible to do these adaptations, especially since it controls both ends of the transform.
+The User Agent is responsible for doing these adaptations, especially since it controls both ends of the transform.
 For those reasons, streams backpressure is disabled in WebRTC encoded transforms.
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