add examples to readme

examples/README.md

@@ -224,6 +224,10 @@ Example | File | Description
 `animate_shader` | [`shader/animate_shader.rs`](./shader/animate_shader.rs) | Shows how to animate a shader by accessing a time uniform variable
 `array_texture` | [`shader/array_texture.rs`](./shader/array_texture.rs) | Illustrates how to create a texture for use with a texture2DArray shader uniform variable
 `custom_shader_pipelined` | [`shader/custom_shader_pipelined.rs`](./shader/custom_shader_pipelined.rs) | Illustrates how to create custom shaders
+`custom_shader_minimal_pipelined` | [`shader/custom_shader_minimal_pipelined.rs`](./shader/custom_shader_minimal_pipelined.rs) | Minimal example of custom shaders which doesn't upload data to the GPU
+`custom_shader_pipelined_glsl` | [`shader/custom_shader_pipelined_glsl.rs`](./shader/custom_shader_pipelined_glsl.rs) | A custom shader using the GLSL shading language.
+`custom_shader_instancing_pipelined` | [`shader/custom_shader_instancing_pipelined.rs`](./shader/custom_shader_instancing_pipelined.rs) | A custom shader showing off rendering a mesh multiple times in one draw call.
+`animate_shader_pipelined` | [`shader/animate_shader_pipelined.rs`](./shader/animate_shader_pipelined.rs) | Shows how to pass changing data like the time since startup into a shader.
 `hot_shader_reloading` | [`shader/hot_shader_reloading.rs`](./shader/hot_shader_reloading.rs) | Illustrates how to load shaders such that they can be edited while the example is still running
 `mesh_custom_attribute` | [`shader/mesh_custom_attribute.rs`](./shader/mesh_custom_attribute.rs) | Illustrates how to add a custom attribute to a mesh and use it in a custom shader
 `shader_custom_material` | [`shader/shader_custom_material.rs`](./shader/shader_custom_material.rs) | Illustrates creating a custom material and a shader that uses it