Create a primitive sampling showcase example

Cargo.toml

@@ -2970,6 +2970,17 @@ description = "Shows off rendering for all math primitives as both Meshes and Gi
 category = "Math"
 wasm = true
 
+[[example]]
+name = "sampling_primitives"
+path = "examples/math/sampling_primitives.rs"
+doc-scrape-examples = true
+
+[package.metadata.example.sampling_primitives]
+name = "Sampling Primitives"
+description = "Demonstrates all the primitives which can be sampled."
+category = "Math"
+wasm = true
+
 # Gizmos
 [[example]]
 name = "2d_gizmos"

examples/README.md

@@ -320,6 +320,7 @@ Example | Description
 Example | Description
 --- | ---
 [Rendering Primitives](../examples/math/render_primitives.rs) | Shows off rendering for all math primitives as both Meshes and Gizmos
+[Sampling Primitives](../examples/math/sampling_primitives.rs) | Demonstrates all the primitives which can be sampled.
 
 ## Reflection