chore: Remove emojis from welcome docs

server/onboarding/Integrations & API.md

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+## Integrations
+
+Outline supports many of the most popular tools on the market without any additional settings or configuration. Just paste links to a YouTube video, Figma file, or Google Spreadsheet to get instant live-embeds in your documents. Take a look at the [integrations directory](https://www.getoutline.com/integrations) for a list of all of the tools that are supported.
+
+Our integration code is also [open-source](https://github.com/outline/outline) and we encourage third party developers and the community to build support for additional tools! 
+
+:::info
+Most integrations work by simply pasting a link from a supported service into a document.
+:::
+
+
+## Slack
+
+If your team is using Slack to communicate then you’ll definitely want to enable our [Slack Integration](/settings/integrations/slack) to get instant link unfurling for Outline documents and access to the `/outline` slash command to search your knowledge base directly from Slack.
+
+## API
+
+Have some technical skills? Outline is built on a fully featured RPC-style [API](https://www.getoutline.com/developers). Create (or even append to) documents, collections, provision users, and more programmatically. All documents are edited and stored in markdown format – try out this example CURL request to get started:
+
+```bash
+curl -XPOST -H "Content-type: application/json" -d '{
+  "title": "My first document",
+  "text": "Hello from the API 👋",
+  "collectionId": "COLLECTION_ID", // find the collection id in the URL bar
+  "token": "API_TOKEN", // get an API token from https://www.getoutline.com/settings/tokens
+  "publish": true
+}' 'https://www.getoutline.com/api/documents.create'
+```
+