Reference Swagger API docs (#33)

* Mention API docs in documentation

* Reference developer docs

docs/developers/api.md

@@ -0,0 +1,14 @@
+# Data Manager API
+
+Access to resources in Data Manager via a RESTful API.
+
+!!! info "API endpoints"
+    Currently, only one endpoint exists, which allows for a download of raw data. It is planned to extend the API in
+    the future to interact with various resources in Data Manager.
+
+
+## Swagger API docs
+
+Detailed API documentation is available via Swagger UI and [hosted on the web service](https://download.qbic.uni-tuebingen.de/swagger-ui/index.html). 
+
+

docs/rawdata/raw_data_download.md

@@ -4,6 +4,9 @@ The raw data summary view shows detailed information about the raw data already
 Additionally, it enables you to generate the [URLs](#raw-data-url-generation) necessary
 to start the command line based [raw data download](#download-raw-data). 
 
+!!! info "Are you a developer?"
+    Read about Swagger API docs in the [developer](../developers/api.md) section.
+
 ## Process
 
 1. Create a [personal access token](#personal-access-token) (PAT)

mkdocs.yml

@@ -36,6 +36,8 @@ nav:
       - Registration: user/user_registration.md
       - Password Reset: user/password_reset.md
       - Editing: user/user_edit.md
+  - Developers:
+      - API: developers/api.md
 extra_css:
   - stylesheets/extra.css
 extra: