Fix typos & misspellings in docs (#347)

strum/src/additional_attributes.rs

@@ -78,7 +78,7 @@
 //!
 //! - `ascii_case_insensitive`: makes the comparison to this variant case insensitive (ASCII only).
 //!   If the whole enum is marked `ascii_case_insensitive`, you can specify `ascii_case_insensitive = false`
-//!   to disable case insensitivity on this v ariant.
+//!   to disable case insensitivity on this variant.
 //!
 //! - `message=".."`: Adds a message to enum variant. This is used in conjunction with the `EnumMessage`
 //!    trait to associate a message with a variant. If `detailed_message` is not provided,

strum_macros/src/lib.rs

@@ -588,7 +588,7 @@ pub fn enum_table(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
 /// data. The discriminant follows the same rules as `rustc`. The first discriminant is zero and each
 /// successive variant has a discriminant of one greater than the previous variant, except where an
 /// explicit discriminant is specified. The type of the discriminant will match the `repr` type if
-/// it is specifed.
+/// it is specified.
 ///
 /// When the macro is applied using rustc >= 1.46 and when there is no additional data on any of
 /// the variants, the `from_repr` function is marked `const`. rustc >= 1.46 is required
@@ -668,7 +668,7 @@ pub fn from_repr(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
 ///
 /// Encode strings into the enum itself. The `strum_macros::EmumMessage` macro implements the `strum::EnumMessage` trait.
 /// `EnumMessage` looks for `#[strum(message="...")]` attributes on your variants.
-/// You can also provided a `detailed_message="..."` attribute to create a seperate more detailed message than the first.
+/// You can also provided a `detailed_message="..."` attribute to create a separate more detailed message than the first.
 ///
 /// `EnumMessage` also exposes the variants doc comments through `get_documentation()`. This is useful in some scenarios,
 /// but `get_message` should generally be preferred. Rust doc comments are intended for developer facing documentation,
@@ -754,7 +754,7 @@ pub fn enum_messages(input: proc_macro::TokenStream) -> proc_macro::TokenStream
 
 /// Add custom properties to enum variants.
 ///
-/// Enables the encoding of arbitary constants into enum variants. This method
+/// Enables the encoding of arbitrary constants into enum variants. This method
 /// currently only supports adding additional string values. Other types of literals are still
 /// experimental in the rustc compiler. The generated code works by nesting match statements.
 /// The first match statement matches on the type of the enum, and the inner match statement