chore: update readme

Author: burmudar

README.md

@@ -13,6 +13,11 @@
 
 **Note:** Using Sourcegraph 3.12 or earlier? [See the older README](https://github.com/sourcegraph/src-cli/tree/3.11.2).
 
+> [!NOTE]
+> ## Support / Feature requests / Issues
+>
+> We are no longer using GitHub issues to track src-cli requests or reports. For future questions or support requests, please contact [Sourcegraph Support](mailto:support@sourcegraph.com).
+
 ## Installation
 
 Binary downloads are available on the [releases tab](https://github.com/sourcegraph/src-cli/releases), and through Sourcegraph.com. _If the latest version does not work for you,_ consider using the version compatible with your Sourcegraph instance instead.
@@ -120,15 +125,15 @@ Run <code><strong>src login <i>SOURCEGRAPH-URL</i></strong></code> to authentica
 - `SRC_ENDPOINT`: the URL to your Sourcegraph instance (such as `https://sourcegraph.example.com`)
 - `SRC_ACCESS_TOKEN`: your Sourcegraph access token (on your Sourcegraph instance, click your user menu in the top right, then select **Settings > Access tokens** to create one)
 
-For convenience, you can add these environment variables persistently. 
+For convenience, you can add these environment variables persistently.
 
 ### Configuration: Mac OS / Linux
 
 Add the following to your terminal profile file, typically accessible at `~/.bash_profile` (if using Bash) or `~/.zprofile` (if using Zsh):
 
 ```
 export SRC_ACCESS_TOKEN=my-token
-export SRC_ENDPOINT=https://sourcegraph.example.com 
+export SRC_ENDPOINT=https://sourcegraph.example.com
 ```
 
 Replace `my-token` and `https://sourcegraph.example.com` with the appropriate values for your account and instance.