add source-settings include, update accordingly

Author: forstisabella

src/_includes/content/functions/source-settings.md

@@ -0,0 +1,28 @@
+<!-- usually placed under a heading called "Settings and Secrets" -->
+
+Settings allow you to pass configurable variables to your function, which is the best way to pass sensitive information such as security tokens. For example, you might use `settings` as placeholders to use information such as an API endpoint and API key. This way, you can use the same code with different settings for different purposes. When you deploy a function in your workspace, you are prompted to fill out these settings to configure the function.
+
+First, add a setting in **Settings** tab in the code editor:
+
+![A screenshot of the functions settings tab](/docs/connections/functions/images/settings-tab-empty.png){:width="500"}
+
+Click **Add Setting** to add your new setting.
+
+![A screenshot of the "Add Setting" section of the functions settings tab, with apiKey settings included](/docs/connections/functions/images/add-source-setting-dialog.png)
+
+You can configure the details about this setting, which change how it's displayed to anyone using your function:
+
+- **Label** - Name of the setting, which users see when configuring the function.
+- **Name** - Auto-generated name of the setting to use in function's source code.
+- **Type** - Type of the setting's value.
+- **Description** - Optional description, which appears below the setting name.
+- **Required** - Enable this to ensure that the setting cannot be saved without a value.
+- **Encrypted** - Enable to encrypt the value of this setting. Use this setting for sensitive data, like API keys.
+
+As you change the values, a preview to the right updates to show how your setting will look and work.
+
+Click **Add Setting** to save the new setting.
+
+Once you save a setting, it appears in the **Settings** tab for the function. You can edit or delete settings from this tab.
+
+![A screenshot of the functions settings tab, showing the apiKey setting](/docs/connections/functions/images/settings-tab-non-empty.png){:width="500"}

src/connections/functions/images/add-setting-dialog.png

@@ -276,7 +276,7 @@ The handler for Source functions is `onRequest()`.
 
 ## Create settings and secrets
 
-{% include content/functions/settings.md %}
+{% include content/functions/source-settings.md %}
 
 Next, fill out this setting's value in **Test** tab, so that you can run the function and check the setting values being passed.