style(formatting): minor grammatical tweak

docs/components/connectors/out-of-the-box-connectors/slack.md

@@ -89,7 +89,7 @@ To post a message, take the following steps:
 2. Set **Channel/User Name** to either the **channel** or **user** you want to send the message to.
    1. A **channel** is specified by a unique identifier starting with a `#` (for example, `#myChannel`).
    2. A **user** is specified by a username starting with an `@` symbol (for example, `@myUser`).
-3. (Optional) A **thread** can be specified, to start a thread from a specific message, `ts` in the response can be used (see [here](#post-message)). If the message has been posted by a user, we currently have no way to retrieve the `ts` value. See the [documentation](https://api.slack.com/methods/chat.postMessage)
+3. (Optional) A **thread** can be specified to start a thread from a specific message. For example, `ts` in the response can be used (see [here](#post-message)). If the message has been posted by a user, we currently have no way to retrieve the `ts` value. Visit the [Slack documentation](https://api.slack.com/methods/chat.postMessage) for additional details.
 4. Select a **Message type**.
    1. When **Plain text** is selected, set **Message** to the message string you would like to send (for example, `Hello World!`).
    2. When **Message block** is selected, set **Message block** to a formatted rich text block format. Learn more about rich text message block format in the [official Slack documentation](https://api.slack.com/reference/surfaces/formatting#stack_of_blocks).