docs: rename development environment to sandbox

README.md

@@ -199,7 +199,7 @@ They can't capture all the project's features, but they are sufficient to get a
 
 ## Get Started
 
-- [Try it out locally](https://homelab.khuedoan.com/installation/development) without any hardware (just 4 commands!)
+- [Try it out locally](https://homelab.khuedoan.com/installation/sandbox) without any hardware (just 4 commands!)
 - [Deploy on real hardware](https://homelab.khuedoan.com/installation/production/prerequisites) for production workload
 
 ## Roadmap

docs/installation/sandbox.md

@@ -1,4 +1,6 @@
-# Development environment
+# Development sandbox
+
+The sandbox is intended for trying out the homelab without any hardware or testing changes before applying them to the production environment.
 
 ## Caveats compare to production environment
 

mkdocs.yml

@@ -35,7 +35,7 @@ markdown_extensions:
 nav:
   - Home: index.md
   - Installation:
-    - installation/development.md
+    - installation/sandbox.md
     - Production:
       - installation/production/prerequisites.md
       - installation/production/external-resources.md