Minor changes

Author: mafiesto4

manual/graphics/shaders/index.md

@@ -36,6 +36,8 @@ As an extension to the HLSL language, Flax uses a small set of **attribute macro
 | `META_CB_BEGIN(index, name)` | Marks the beginning of the constant buffer definition. |
 | `META_CB_END` | Marks the end of the constant buffer definition. |
 
+`minFeatureLevel` should be `AUTO` for automatic detection or specific Feature Level: `FEATURE_LEVEL_ES2`, `FEATURE_LEVEL_SM4`, `FEATURE_LEVEL_SM5`, `FEATURE_LEVEL_SM6`.
+
 #### Shader permutations
 
 One of the features of the shading language in Flax is ability to explicitly permute a shader source using a meta attributes with defines. To understand it take a look at the following example:

manual/platforms/windows.md

@@ -27,7 +27,6 @@ Flax is compiled for Windows platform using Microsoft Visual C++ compiler. It us
 | **Screen Width** | The default game window width (in pixels). |
 | **Screen Height** | The default game window height (in pixels). |
 | **Resizable Window** | Enables resizing the game window by the user. |
-| **Run In Background** | Enables game running when application window loses focus. |
 | **Force Single Instance** | Limits maximum amount of concurrent game instances running to one, otherwise user may launch application more than once. |
 | **Override Icon** | Custom icon texture to use for the application (overrides the default one). |
 | **Support DirectX 12** | Enables support for DirectX 12. Disabling it reduces compiled shaders count. |