Add legacy docs

README.md

@@ -1 +1,33 @@
-# iframely-server
+# iframely-server
+
+[![build](https://github.com/emgag/iframely-server/actions/workflows/build.yml/badge.svg)](https://github.com/emgag/iframely-server/actions/workflows/build.yml)
+[![release](https://github.com/emgag/iframely-server/actions/workflows/release.yml/badge.svg)](https://github.com/emgag/iframely-server/actions/workflows/release.yml)
+
+Simple wrapper for iframely oEmbed API.
+
+## Endpoints
+
+### _/info_
+
+**Parameters**:
+
+- (required) _api_key_: The API key for authentication
+- (required) _url_: The url of the requested embed
+
+**Response**:
+
+A JSON object with the following values:
+
+- _provider_: The lowercase embed provider name
+- _url_: The requested embed url
+- _html_: The embed html code
+- _image_: The embed (preview) image
+
+or 
+
+- _error_: In case of an error returned by iframely
+
+## Environment variables
+
+- `SERVER_API_KEY`: Key to authenticate clients
+- `IFRAMELY_API_KEY`: API key for fetching data from iframely