add doc: imRtdModule (#3911)

* add imRtdProvider doc

* add corp link

dev-docs/modules/imRtdProvider.md

@@ -0,0 +1,73 @@
+---
+layout: page_v2
+title: Intimate Merger Real time Data Provider
+display_name: Intimate Merger Real-time Data Submodule
+description: Intimate Merger Real-time Data Submodule
+page_type: module
+module_type: rtd
+module_code : imRtdProvider
+enable_download : true
+sidebarType : 1
+---
+
+# Intimate Merger Real time Data Provider
+{:.no_toc}
+
+* TOC
+{:toc}
+
+This module reads segments from [Intimate Merger](https://corp.intimatemerger.com/) audience data platform and attaches them as targeting keys to bid requests.
+
+The audience data platform performs segmentation even in environments where 3rd party cookies are not available, but curretly only available in Japan.
+
+
+## Usage
+
+Add it to your Prebid.js package with:
+
+`gulp build --modules=rtdModule,imRtdProvider`
+
+## Publisher Customized RTD Handling
+
+The following configuration parameters are available:
+
+```
+pbjs.setConfig(
+    ...
+    realTimeData: {
+        auctionDelay: 5000,
+        dataProviders: [
+            {
+                name: "im",
+                waitForIt: true,
+                params: {
+                    cid: 5126, // Set your Intimate Merger Customer ID here for production
+                    setGptKeyValues: true
+                }
+            }
+        ]
+    }
+    ...
+}
+```
+
+## Parameters
+
+{: .table .table-bordered .table-striped }
+| Param under dataProviders | Scope | Type | Description | Example |
+| --- | --- | --- | --- | --- |
+| name | Required | String | The name of this module. | `"im"` |
+| waitForIt | Optional | Boolean | Required to ensure that the auction is delayed until prefetch is complete. Defaults to false but recommended to true | `true` |
+| params | Required | Object | Details of module params. | |
+| params.cid | Required | Number | This is the Customer ID value obtained via Intimate Merger. | `5126` |
+| params.setGptKeyValues | Optional | Boolean | This is set targeting for GPT/GAM. Default setting is true. | `true` |
+
+## Testing
+
+First, make sure to add the Intimate Merger submodule to your Prebid.js package with:
+
+`gulp serve --modules=rtdModule,imRtdProvider`
+
+and then point your browser at:
+
+`http://localhost:9999/integrationExamples/gpt/imRtdProvider_example.html`