Small syntax and formatting changes

Author: id4ho

src/doc/trpl/guessing-game.md

@@ -599,7 +599,7 @@ With this definition, anything of type `Foo` can be either a
 `Foo::Bar` or a `Foo::Baz`. We use the `::` to indicate the
 namespace for a particular `enum` variant.
 
-The [`Ordering`][ordering] enum has three possible variants: `Less`, `Equal`,
+The [`Ordering`][ordering] `enum` has three possible variants: `Less`, `Equal`,
 and `Greater`. The `match` statement takes a value of a type, and lets you
 create an ‘arm’ for each possible value. Since we have three types of
 `Ordering`, we have three arms:
@@ -918,9 +918,9 @@ let guess: u32 = match guess.trim().parse() {
 
 This is how you generally move from ‘crash on error’ to ‘actually handle the
 error’, by switching from `ok().expect()` to a `match` statement. The `Result`
-returned by `parse()` is an enum just like `Ordering`, but in this case, each
+returned by `parse()` is an `enum` just like `Ordering`, but in this case, each
 variant has some data associated with it: `Ok` is a success, and `Err` is a
-failure. Each contains more information: the successful parsed integer, or an
+failure. Each contains more information: the successfully parsed integer, or an
 error type. In this case, we `match` on `Ok(num)`, which sets the inner value
 of the `Ok` to the name `num`, and then we just return it on the right-hand
 side. In the `Err` case, we don’t care what kind of error it is, so we just