Fix some typos, reword enum bit again

Author: cincodenada

chapter-1.md

@@ -590,7 +590,7 @@ test "set enum ordinal value" {
 }
 ```
 
-Functions can be given to enums. These are sometimes called "methods", and act as namespaced functions that can be called with dot syntax. As a convenience, when called from an instance of the enum these methods are automatically passed that instance as their first argument. Notice below that `Suit.spades.isClubs()` is equivalent to `Suit.isClubs(Suit.spades)`. Additionally, since we're calling the method from the enum, we don't have to specify the enum again, and can shorten the argument to just `.spades`.
+Functions can be given to enums. These are sometimes called "methods", and act as namespaced functions that can be called with dot syntax. As a convenience, when called from an instance of the enum these methods are automatically passed that instance as their first argument. Thus, `Suit.spades.isClubs()` is equivalent to `Suit.isClubs(Suit.spades)`. Additionally, when calling a method from the enum, we can shorten the argument to omit the enum name and pass it with just a leading dot, as in the example below.
 
 ```zig
 const Suit = enum {
@@ -674,7 +674,7 @@ test "struct defaults" {
 
 Like enums, structs may also contain functions and declarations.
 
-Similar to enums, methods called from a struct instance will be passed a _pointer to_ that instance. In addition, structs an additional unique property: when accessing fields from a pointer to a struct, one level of dereferencing is done automatically. Notice how these work together in the example below: the swap() function is automatically passed a pointer to `thing`, and then accesses self.x and self.y using that pointer without needing to dereference it.
+Similar to enums, methods called from a struct instance will be passed a *pointer to* that instance. Structs also have an additional unique property: when accessing fields from a pointer to a struct, one level of dereferencing is done automatically. Notice how these work together in the example below: the swap() function is automatically passed a pointer to `thing`, and then accesses self.x and self.y using that pointer without needing to dereference it.
 
 ```zig
 const Stuff = struct {