docs: clarify Everflow test-order S2S postback behavior (#12)

* docs: clarify Everflow test-order S2S postback behavior

Update the Everflow app docs to reflect the "Enable S2S Postback for
test orders" setting: test orders DO fire an S2S postback to Everflow
when that setting is enabled (with the master postback toggle on).
Also remove a stray trailing backslash from the "Include Tax in
Conversion Value" field list item.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* docs: fix callout stutter and align test-order setting label casing

Address Kilo review: reword "Enable the Enable S2S Postback..." to
"Turn on the Enable S2S Postback..." and align the setting label
casing on the test-orders page to match the in-product label
("Enable S2S Postback for test orders").

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: brettstirlingbond

content/docs/apps/everflow.mdx

@@ -26,7 +26,7 @@ The configurable fields are as follows:
 * Everflow Network ID\*
 * Everflow Verification Token
 * Everflow Postback Delay Minutes
-*   Include Tax in Conversion Value\
+*   Include Tax in Conversion Value
     <br />
 
 The Everflow App uses the S2S (Server to Server) conversion method with an order. The S2S conversion method will enable the following values to be passed back on a conversion event into Everflow.
@@ -65,8 +65,8 @@ The **`everflow_transaction_id`** is equivalent to the "transaction\_id" that Ev
 }
 ```
 
-<Callout type="warning">
+<Callout type="info">
 
-Note that [**Test Orders**](/docs/manage/orders/test-orders) do not fire an S2S postback to Everflow.
+By default, [**Test Orders**](/docs/manage/orders/test-orders) do not fire an S2S postback to Everflow. Turn on the **Enable S2S Postback for test orders** setting (with **Enable Everflow S2S Postback** also enabled) if you want test orders to fire a conversion postback to Everflow.
 
 </Callout>

content/docs/manage/orders/test-orders.mdx

@@ -49,7 +49,7 @@ Test orders differ from real orders in a variety of ways:
 
 For stores that have the [**Klaviyo**](/docs/apps/klaviyo) or [ **Everflow** ](/docs/apps/everflow)Apps enabled, note that Test Orders _do not_ trigger server to server (S2S) postbacks by default.  \
 \
-Choose the "Enable S2S postback for test orders" option in the Everflow App settings to fire postbacks on test orders.\
+Choose the "Enable S2S Postback for test orders" option in the Everflow App settings to fire postbacks on test orders.\
 \
 Choose the "Enable Sending Test Data to Klaviyo" option in the Klaviyo App settings to send test order data through to Klaviyo.