Service	Microsoft Docs article	Related commit history on GitHub	Change details
platform	Cards Reference	https://github.com/MicrosoftDocs/msteams-docs/commits/main/msteams-platform/task-modules-and-cards/cards/cards-reference.md	You can identify and use different types of cards based on your application requ | [List card](#list-card) | This card contains a scrolling list of items. | | [Office 365 Connector card](#office-365-connector-card) | This card has a flexible layout with multiple sections, fields, images, and actions. | | [Receipt card](#receipt-card) | This card provides a receipt to the user. | -| [Signin card](#sign in-card) | This card enables a bot to request that a user signs in. | +| [Signin card](#sign-in-card) | This card enables a bot to request that a user signs in. | | [Thumbnail card](#thumbnail-card) | This card typically contains a single thumbnail image, some short text, and one or more buttons. | | [Card collections](#card-collections) | This card collection is used to return multiple items in a single response. |
platform	What Are Cards	https://github.com/MicrosoftDocs/msteams-docs/commits/main/msteams-platform/task-modules-and-cards/what-are-cards.md	The bots for Teams support the following types of cards: - Card collections - Overflow menu on Adaptive Cards -- Adaptive Card-- Hero card-- List card-- Office 365 Connector card-- Receipt card-- Sign in card-- Thumbnail card-- Card collections- You can add rich text formatting to your cards using either Markdown or HTML, depending on the card type. Cards used by bots and message extensions in Microsoft Teams, add and respond to these card actions, `openUrl`, `messageBack`, `imBack`, `invoke`, and `signin`. Teams uses cards in three different places: