Update project category api documentation

content/en/docs/apidocs-mxsdk/apidocs/governance/project-category-api.md

@@ -0,0 +1,37 @@
+---
+title: "Project Category API"
+url: /apidocs-mxsdk/apidocs/project-category-api/
+type: swagger
+description: "The Project Category API manages your project categories."
+weight: 100
+restapi: true
+---
+
+## Introduction
+
+The Mendix Project Category API allows you to create, edit or delete your project categories.
+
+## Authentication {#authentication}
+
+Authentication for the Project Category API uses a personal access token (PAT).
+
+### Generating a PAT {#generate}
+
+For details on how to generate a PAT, refer to the [Personal Access Tokens](/mendix-profile/user-settings/#pat) section of *User Settings*.
+
+Select the appropriate scopes, depending on the endpoints that need to be invoked. Refer to the [API Reference](#api-reference) for more information on which scopes to use in which endpoints.
+
+Store the generated value somewhere safe so you can use it to authorize your API calls.
+
+### Using the PAT
+
+Each request must contain an `Authorization` header with the value `MxToken {GENERATED_PAT}`. For example:
+
+```http
+GET /companies/{:companyId}/categories HTTP/1.1
+Authorization: MxToken 7LJE…vk
+```
+
+## API Reference{#api-reference}
+
+{{< swaggerui-disable-try-it-out src="/openapi-spec/categories-v1.yaml"  >}}