Composio: update text - "Composio Logo" -> "Composio Example" (#2288)

* add composio to ecosystem page

* composio: delete image

* composio: add image

* Update .gitattributes

* Update website/docs/ecosystem/composio.md

* composio: update text

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Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>