help: Introduce "public access option" term for web-public streams.

templates/zerver/help/include/sidebar_index.md

@@ -161,7 +161,7 @@
 
 ## Stream management
 * [Stream permissions](/help/stream-permissions)
-* [Web-public streams](/help/web-public-streams)
+* [Public access option](/help/web-public-streams)
 * [Stream posting policy](/help/stream-sending-policy)
 * [Restrict stream creation](/help/configure-who-can-create-streams)
 * [Restrict stream invitation](/help/configure-who-can-invite-to-streams)

templates/zerver/help/include/web-public-streams-intro.md

@@ -1,6 +1,6 @@
-Administrators may enable the option to create **web-public streams**.
-Web-public streams can be viewed by anyone on the Internet without
-creating an account in your organization.
+The public access option lets administrators configure selected streams to be
+**web-public**. Web-public streams can be viewed by anyone on the Internet
+without creating an account in your organization.
 
 For example, you can [link to a Zulip
 topic](/help/link-to-a-message-or-conversation) in a web-public stream

templates/zerver/help/moderating-open-organizations.md

@@ -53,7 +53,7 @@ organization's policy choices.
 * [Deactivate bots](/help/deactivate-or-reactivate-a-bot) or
   [delete custom emoji](/help/custom-emoji#delete-custom-emoji).
 
-## Web-public streams
+## Public access option
 
 {!web-public-streams-intro.md!}
 

templates/zerver/help/web-public-streams.md

@@ -1,4 +1,4 @@
-# Web-public streams
+# Public access option
 
 !!! warn ""