Minor restyling of attribute docs

docs/1.1-attributes.md

@@ -22,7 +22,7 @@ Serde also allows setting `#[serde(...)]` attributes which change how types are
 1. [Supported Serde Attributes](#supported-serde-attributes)
     - [`rename`](#rename)
     - [`rename_all`](#rename_all)
-    - [`tag` / `untagged`](#tag)
+    - [`tag` / `content` / `untagged`](#tag)
     - [`default`](#default)
     - [`skip`](#skip)
     - [`skip_serializing`](#skip_serializing)
@@ -56,14 +56,16 @@ Set on a struct, enum or variant to rename all fields according to the given cas
 
 Serde docs: [container](https://serde.rs/container-attrs.html#rename_all) / [variant](https://serde.rs/variant-attrs.html#rename_all)
 
-<h3 id="tag">
+<h3 id="tag" style="line-height: 1.5">
 
-`#[serde(tag = "type")]` / `#[schemars(tag = "type")]` / `#[serde(tag = "t", content = "c")]` / `#[schemars(tag = "t", content = "c")]` / `#[serde(untagged)]` / `#[schemars(untagged)]`
+`#[serde(tag = "type")]` / `#[schemars(tag = "type")]` <br />
+`#[serde(tag = "t", content = "c")]` / `#[schemars(tag = "t", content = "c")]` <br />
+`#[serde(untagged)]` / `#[schemars(untagged)]`
 </h3>
 
 Set on an enum to generate the schema for the [internally tagged](https://serde.rs/enum-representations.html#internally-tagged), [adjacently tagged](https://serde.rs/enum-representations.html#adjacently-tagged), or [untagged](https://serde.rs/enum-representations.html#untagged) representation of this enum.
 
-Serde docs: [`tag`](https://serde.rs/container-attrs.html#tag) / [`tag`/`content`](https://serde.rs/container-attrs.html#tag--content) / [`untagged`](https://serde.rs/container-attrs.html#untagged)
+Serde docs: [`tag`](https://serde.rs/container-attrs.html#tag) / [`tag`+`content`](https://serde.rs/container-attrs.html#tag--content) / [`untagged`](https://serde.rs/container-attrs.html#untagged)
 
 <h3 id="default">