Apply suggestions from code review

Co-authored-by: Elena Khamlyuk <80813840+khamlyuk@users.noreply.github.com>
Signed-off-by: Arman Boyakhchyan <arman.boyakhchyan@devexpress.com>

Author: arman-boyakhchyan

apps/demos/Demos/Chat/PromptSuggestions/description.md

@@ -3,5 +3,5 @@ DevExtreme [Chat](/Documentation/Guide/UI_Components/Chat/Overview/) can display
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 This demo allows you to configure suggestion buttons as follows:
 
-- Send predefined prompts immediately or fill the Chat [input field](/Documentation/ApiReference/UI_Components/dxChat/Configuration/#inputFieldText) when a suggestion is clicked
-- Toggle single-use suggestions (buttons disappear on click)
+- Specify whether the Chat displays a predefined prompt in the input field or immediately sends a message with that prompt.
+- Hide/display single-use suggestions