docs: add general Docker requirements (#565)

* chore: move system requirements to its own folder

* docs: add a general Docker requirements overview page

docs/system_requirements/index.md

@@ -0,0 +1,12 @@
+# General Docker requirements
+
+## Overview
+
+Testcontainers requires a Docker-API compatible container runtime. 
+During development, Testcontainers is actively tested against recent versions of Docker on Linux, as well as against Docker Desktop on Mac and Windows. 
+These Docker environments are automatically detected and used by Testcontainers without any additional configuration being necessary.
+
+It is possible to configure Testcontainers to work for other Docker setups, such as a remote Docker host or Docker alternatives. 
+However, these are not actively tested in the main development workflow, so not all Testcontainers features might be available and additional manual configuration might be necessary. 
+If you have further questions about configuration details for your setup or whether it supports running Testcontainers-based tests, 
+please contact the Testcontainers team and other users from the Testcontainers community on [Slack](https://slack.testcontainers.org/).

mkdocs.yml

@@ -51,8 +51,9 @@ nav:
           - examples/nginx.md
           - examples/redis.md
     - System Requirements:
-          - features/using_colima.md
-          - features/using_podman.md
+          - system_requirements/index.md
+          - system_requirements/using_colima.md
+          - system_requirements/using_podman.md
     - Contributing:
           - contributing.md
           - contributing_docs.md