Fix grammar error in summary report example

Co-authored-by: Maryam Ziyad <[email protected]>

examples/AutomatedSummaryReport/AutomatedSummaryReport.md

@@ -4,9 +4,9 @@ This use case demonstrates how the Slack API can be utilized to generate a summa
 
 ## Prerequisites
 
-1. Generate Slack token to authenticate the connector as described in the [Setup guide](https://central.ballerina.io/ballerinax/slack/latest#prerequisites).
+1. Generate a Slack token to authenticate the connector as described in the [Setup guide](https://central.ballerina.io/ballerinax/slack/latest#prerequisites).
 
-2. For each example, create a `Config.toml` file the related configuration. Here's an example of how your `Config.toml` file should look:
+2. For each example, create a `Config.toml` file with the related configuration. Here's an example of what your `Config.toml` file should look:
 
    ```toml
    token = "<token>"