PubMatic RTD Documentation and link added (#5860)

* Initial commit : add pubmatic rtd documentation

* Remove lint errors

* Remove lint error

* Update the pubmaticRTD documentation

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Co-authored-by: Komal Kumari <[email protected]>

Author: pm-komal-kumari

dev-docs/modules/pubmaticRtdProvider.md

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+---
+layout: page_v2
+page_type: module
+title: PubMatic RTD Provider
+display_name: PubMatic RTD Module
+description: RTD module for Prebid provided by PubMatic to set dynamic floors
+module_type: rtd
+module_code: pubmaticRtdProvider
+enable_download: true
+vendor_specific: true
+sidebarType: 1
+---
+
+# PubMatic RTD Module
+{:.no_toc}
+
+* TOC
+{:toc}
+
+## Overview
+
+The PubMatic RTD module fetches pricing floor data and updates the Price Floors Module based on user's context in real-time as per Price Floors Modules Floor Data Provider Interface guidelines [Dynamic Floor Data Provider](https://docs.prebid.org/dev-docs/modules/floors.html#floor-data-provider-interface).
+
+## Integration
+
+Step 1: Contact PubMatic to get a publisher ID and create your first profile.
+
+Step 2: Integrate the PubMatic Analytics Adapter (see Prebid Analytics modules) as well as the Price Floors module.
+
+Step 3: Prepare the base Prebid file.
+
+For example:
+
+To compile the Price Floors, PubMatic RTD module and PubMatic Analytics Adapter into your Prebid build:
+
+```shell
+gulp build --modules=priceFloors,rtdModule,pubmaticRtdProvider,pubmaticAnalyticsAdapter
+```
+
+{: .alert.alert-info :}
+Note: The PubMatic RTD module is dependent on the global real-time data module : `rtdModule`, price floor module : `priceFloors` and PubMatic Analytics Adapter : `pubmaticAnalyticsAdapter`.
+
+Step 4: Set configuration and enable PubMatic RTD Module using pbjs.setConfig.
+
+## Configuration
+
+This module is configured as part of the `realTimeData.dataProviders`.  We recommend setting `auctionDelay` to at least 250 ms and make sure `waitForIt` is set to `true` for the `pubmatic` RTD provider.
+
+```js
+const AUCTION_DELAY = 250;
+pbjs.setConfig({
+    // rest of the config
+    ...,
+    realTimeData: {
+        auctionDelay: AUCTION_DELAY,
+        dataProviders: [
+            {
+                name: "pubmatic",
+                waitForIt: true,
+                params: {
+                    publisherId: `<publisher_id>`, // please contact PubMatic to get a publisherId for yourself
+                    profileId: `<profile_id>`, // please contact PubMatic to get a profileId for yourself
+                },
+            },
+        ],
+    },
+    // rest of the config
+    ...,
+});
+```
+
+## Parameters
+
+{: .table .table-bordered .table-striped }
+| Name               | Type    | Description                                                    | Default                    |
+| :----------------- | :------ | :------------------------------------------------------------- | :------------------------- |
+| name               | String  | Name of the real-time data module                              | Always `pubmatic`          |
+| waitForIt          | Boolean | Should be `true` if an `auctionDelay` is defined (mandatory)    | `false`                     |
+| params             | Object  |                                                                |                            |
+| params.publisherId | String  | Publisher ID                                                   |                            |
+| params.profileId   | String  | Profile ID                                                     |                            |