Wrap PR 146 to 80 columns

Author: dtolnay

_src/container-attrs.md

@@ -71,11 +71,19 @@
 
 - ##### `#[serde(variant_identifier)]` {#variant_identifier}
 
-  Use an identifier representation for this enum. This can only be applied to enums that are C-like (containing only unit variants), and forces them to always be represented as strings, regardless of the underlying data format's representation of enums.
+  Use an identifier representation for this enum. This can only be applied to
+  enums that are C-like (containing only unit variants), and forces them to
+  always be represented as strings, regardless of the underlying data format's
+  representation of enums.
 
 - ##### `#[serde(field_identifier)]` {#field_identifier}
 
-  Identical to [`variant_identifier`](#variant_identifier), but also allows for the last variant to be a newtype variant, which will be used if none of the other variants match (similar to [`#[serde(other)]`](../variant-attrs.html#other)). Like `variant_identifier`, this forces the enum to always be represented as a string, regardless of the underlying data format's representation of enums.
+  Identical to [`variant_identifier`](#variant_identifier), but also allows for
+  the last variant to be a newtype variant, which will be used if none of the
+  other variants match (similar to
+  [`#[serde(other)]`](../variant-attrs.html#other)). Like `variant_identifier`,
+  this forces the enum to always be represented as a string, regardless of the
+  underlying data format's representation of enums.
 
 - ##### `#[serde(bound = "T: MyTrait")]` {#bound}