Update docs and changelog

docs/1.1-attributes.md

@@ -124,6 +124,15 @@ If the given type has any required generic type parameters, then they must all b
 
 Serde docs: [variant](https://serde.rs/variant-attrs.html#with) / [field](https://serde.rs/field-attrs.html#with)
 
+<h3 id="deny_unknown_fields">
+
+`#[serde(deny_unknown_fields)]` / `#[schemars(deny_unknown_fields)]`
+</h3>
+
+Setting this on a container will set the `additionalProperties` keyword on generated schemas to `false` to show that any extra properties are explicitly disallowed.
+
+Serde docs: [container](https://serde.rs/container-attrs.html#deny_unknown_fields)
+
 </div>
 
 ## Other Attributes

docs/_includes/examples/schemars_attrs.rs

@@ -2,7 +2,7 @@ use schemars::{schema_for, JsonSchema};
 use serde::{Deserialize, Serialize};
 
 #[derive(Deserialize, Serialize, JsonSchema)]
-#[schemars(rename_all = "camelCase")]
+#[schemars(rename_all = "camelCase", deny_unknown_fields)]
 pub struct MyStruct {
     #[serde(rename = "thisIsOverridden")]
     #[schemars(rename = "myNumber")]

docs/_includes/examples/schemars_attrs.schema.json

@@ -26,6 +26,7 @@
       "format": "int32"
     }
   },
+  "additionalProperties": false,
   "definitions": {
     "MyEnum": {
       "anyOf": [

docs/_includes/examples/serde_attrs.rs

@@ -2,7 +2,7 @@ use schemars::{schema_for, JsonSchema};
 use serde::{Deserialize, Serialize};
 
 #[derive(Deserialize, Serialize, JsonSchema)]
-#[serde(rename_all = "camelCase")]
+#[serde(rename_all = "camelCase", deny_unknown_fields)]
 pub struct MyStruct {
     #[serde(rename = "myNumber")]
     pub my_int: i32,

docs/_includes/examples/serde_attrs.schema.json

@@ -26,6 +26,7 @@
       "format": "int32"
     }
   },
+  "additionalProperties": false,
   "definitions": {
     "MyEnum": {
       "anyOf": [