Created a first draft of this action. (#14)

Reviewed-on: #14
Co-authored-by: Philipp Horstenkamp <philipp@horstenkamp.de>
Co-committed-by: Philipp Horstenkamp <philipp@horstenkamp.de>

node_modules/undici/docs/api/ContentType.md

@@ -0,0 +1,57 @@
+# MIME Type Parsing
+
+## `MIMEType` interface
+
+* **type** `string`
+* **subtype** `string`
+* **parameters** `Map<string, string>`
+* **essence** `string`
+
+## `parseMIMEType(input)`
+
+Implements [parse a MIME type](https://mimesniff.spec.whatwg.org/#parse-a-mime-type).
+
+Parses a MIME type, returning its type, subtype, and any associated parameters. If the parser can't parse an input it returns the string literal `'failure'`.
+
+```js
+import { parseMIMEType } from 'undici'
+
+parseMIMEType('text/html; charset=gbk')
+// {
+//   type: 'text',
+//   subtype: 'html',
+//   parameters: Map(1) { 'charset' => 'gbk' },
+//   essence: 'text/html'
+// }
+```
+
+Arguments:
+
+* **input** `string`
+
+Returns: `MIMEType|'failure'`
+
+## `serializeAMimeType(input)`
+
+Implements [serialize a MIME type](https://mimesniff.spec.whatwg.org/#serialize-a-mime-type).
+
+Serializes a MIMEType object.
+
+```js
+import { serializeAMimeType } from 'undici'
+
+serializeAMimeType({
+  type: 'text',
+  subtype: 'html',
+  parameters: new Map([['charset', 'gbk']]),
+  essence: 'text/html'
+})
+// text/html;charset=gbk
+
+```
+
+Arguments:
+
+* **mimeType** `MIMEType`
+
+Returns: `string`