Miro (Independent Publisher) (microsoft#1341)

* Add new connector

* Change clientId to dummy text

independent-publisher-connectors/Miro/Readme.md

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+# Miro
+Miro (formerly RealtimeBoard) is an intuitive visual collaboration and whiteboarding platform for cross-functional teams.
+
+## Publisher: Michał Romiszewski
+
+## Prerequisites
+You will need a free or paid [Miro](https://miro.com/) account in order to use this connector.
+
+## Obtaining Credentials
+Miro apps need authorization to access content on Miro boards. Authorization is an explicit consent that a user grants to a specific app, which in turn, provides access to specific Miro user data or team data. 
+To get a **Client ID** and **Client Secret**, you will need to create your app in Miro following steps from the [Getting started guide](https://developers.miro.com/docs/getting-started):
+1. Get developer team to create app [Get Dev Team](https://miro.com/app/dashboard/?createDevTeam=1).
+2. On the [Your apps](https://miro.com/app/settings/user-profile/apps) page, review the Terms and Conditions, select the *I agree to the Terms and Conditions* and click *Create new app*.
+3. On the *Create new app window*, in the *App Name* box, enter the name and *Click Create app*.
+4. Select required scopes:
+    - `boards:read` - Read boards you have access to.
+    - `boards:write` - Modify boards you have access to.
+5. Click *Install app and get OAuth token*.
+6. On the *Install app to get OAuth token* window, Select a team, click *Install & authorize* button. After confirmation, click the *Close* button.
+7. Fill in the *Redirect URI for the OAuth2.0* field:
+    - `https://global.consent.azure-apim.net/redirect`
+8. You can get the **Client ID** and **Client Secret** from the *App Credentials* section.
+
+## Supported Operations
+The connector supports the following operations:
+### Boards
+- `Create a board`: Create a new board.
+- `Get a board`: Get a specific board by its unique identifier.
+- `Update a board`: Update a specific board by its unique identifier.
+- `Copy a board`: Create a copy of an existing board.
+### Widgets
+- `Get widgets`: Get all widgets.
+- `Create a card widget`: Create a new card widget.
+- `Get a widget`: Get a specific single widget by its unique identifier.
+- `Update a card widget`: Update a specific card widget by its unique identifier.
+- `Delete a widget`: Delete a specific widget by its unique identifier.
+
+## Known Issues and Limitations
+There are no known issues at this time.