EDIT: Docs and minor bug fixed

docs/ASSETS.md

@@ -0,0 +1,23 @@
+**Assets & Paths**
+
+- Default locations
+  - `assets/` for models/textures and `shaders/` for GLSL live at the repo root.
+  - The engine auto‑detects these folders by walking up from the working directory.
+
+- Override root via environment
+  - Set `VKG_ASSET_ROOT` to a directory containing `assets/` and/or `shaders/`.
+  - Example: `VKG_ASSET_ROOT=/home/user/vulkan-engine ./bin/vulkan_engine`
+
+- API
+  - Use `AssetLocator` through `EngineContext::getAssets()` helpers:
+    - `shaderPath("name.spv")` resolves a shader.
+    - `assetPath("relative/or/absolute")` resolves runtime assets.
+    - `modelPath("some.glb")` is an alias for `assetPath`.
+
+- Sample content
+  - The engine loads `assets/police_office.glb` by default in `VulkanEngine::init()`.
+  - Ensure this file (and any textures it references) exists under your asset root, or adjust the path used by the sample scene.
+
+- Materials & sRGB
+  - See `docs/asset_manager.md` for mesh/material creation and sRGB/UNORM handling.
+