Update docs

docs/3-generating.md

@@ -21,7 +21,7 @@ If you want more control over how the schema is generated, you can use the [`gen
 See the API documentation for more info on how to use those types for custom schema generation.
 
 <!-- UNCOMMMENT FOR 0.8.2:
-## Schema from Example Values
+## Schema from Example Value
 
 If you want a schema for a type that can't/doesn't implement `JsonSchema`, but does implement `serde::Serialize`, then you can generate a JSON schema from a value of that type using the [`schema_for_value!` macro](https://docs.rs/schemars/latest/schemars/macro.schema_for_value.html). However, this schema will generally be less precise than if the type implemented `JsonSchema` - particularly when it involves enums, since schemars will not make any assumptions about the structure of an enum based on a single variant.
 

docs/examples/8-enum_repr.md

@@ -1,13 +1,14 @@
 ---
 layout: default
-title: Serialize enum as number (serde_repr)
+title: Serialize Enum as Number (serde_repr)
 parent: Examples
 nav_order: 8
 summary: >-
   Generating a schema for with a C-like enum compatible with serde_repr.
+nav_exclude: true # schemars 0.8.2 currently unreleased
 ---
 
-# Deriving JsonSchema with Fields Using Custom Serialization
+# Serialize Enum as Number (serde_repr Compatibility)
 
 If you use the `#[repr(...)]` attribute on an enum to give it a C-like representation, then you may also want to use the [serde_repr](https://github.com/dtolnay/serde-repr) crate to serialize the enum values as numbers. In this case, you should use the corresponding `JsonSchema_repr` derive to ensure the schema for your type reflects how serde formats your type.
 

docs/examples/9-from_value.md

@@ -0,0 +1,17 @@
+---
+layout: default
+title: Generate Schema from Example Value
+parent: Examples
+nav_order: 9
+summary: >-
+  Generating a schema for a serializable value.
+nav_exclude: true # schemars 0.8.2 currently unreleased
+---
+
+# Generate Schema from Example Value
+
+If you want a schema for a type that can't/doesn't implement `JsonSchema`, but does implement [`serde::Serialize`](https://docs.serde.rs/serde/trait.Serialize.html), then you can generate a JSON schema from a value of that type. However, this schema will generally be less precise than if the type implemented `JsonSchema` - particularly when it involves enums, since schemars will not make any assumptions about the structure of an enum based on a single variant.
+
+{% include example.md name="from_value" %}
+
+Note that the schema for the enum is not very useful in this case, since schemars doesn't know anything about the second variant.