corrected the expression for sending hsm templates using google sheets

Author: mahajantejas

docs/4. Product Features/03. Flows/2. Flow Actions/12. Link Google Sheets.md

@@ -1,5 +1,3 @@
-> ### **10 minutes read                                                                                                                         `Intermediate`**
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 ## Video Tutorial
@@ -96,7 +94,9 @@ Let us dive in a bit deeper by looking at the steps involved :
 
 As you can see, the row input field is given an expression `@calendar.current_date` which tries to match the current date value with a `Key` value. If a match is found, then that row is chosen.
 
-5. In the next step, `Send contact a message` is used and an expression is given in place of the template selection drop-down. The expression reads `<%= Glific.send_template("{uuid}", ["{variables}"]) %>`
+5. In the next step, `Send contact a message` is used and an expression is given in place of the template selection drop-down. The expression to be added for the HSM templates which contain template variables is as follows `<%= Glific.send_template("@results.sheet.template_uuid", ["@contact.name","@contact.fields.district"] ) %>`. The variables can be added in the square brackets inside double quotes separated by commas. Refer to how @contact.name, @contact.fields.district have been added. Different contact variables or just plain strings can be added as variables.
+  
+6. For HSM templates without any template variables, the following expression can be used  `<%= Glific.send_template("@results.sheet.template_uuid", [] ) %>`
 
 ![Screenshot 2023-09-15 at 1 56 54 PM](https://user-images.githubusercontent.com/132430123/268223071-9f2730b9-9364-46fc-b062-1bbd39c102f9.png)