docs: typos (#1440)

## Fixes Or Enhances

This PR fixes a few typos

@go-playground/validator-maintainers

Author: eqsdxr

_examples/struct-level/main.go

@@ -156,7 +156,7 @@ func main() {
 }
 
 // UserStructLevelValidation contains custom struct level validations that don't always
-// make sense at the field validation level. For Example this function validates that either
+// make sense at the field validation level. For example, this function validates that either
 // FirstName or LastName exist; could have done that with a custom field validation but then
 // would have had to add it to both fields duplicating the logic + overhead, this way it's
 // only validated once.

doc.go

@@ -188,7 +188,7 @@ Same as structonly tag except that any struct level validations will not run.
 
 # Omit Empty
 
-Allows conditional validation, for example if a field is not set with
+Allows conditional validation, for example, if a field is not set with
 a value (Determined by the "required" validator) then other validation
 such as min or max won't run, but if a value is set validation will run.
 

errors.go

@@ -105,24 +105,24 @@ type FieldError interface {
 	// StructNamespace returns the namespace for the field error, with the field's
 	// actual name.
 	//
-	// eq. "User.FirstName" see Namespace for comparison
+	// eg. "User.FirstName" see Namespace for comparison
 	//
 	// NOTE: this field can be blank when validating a single primitive field
 	// using validate.Field(...) as there is no way to extract its name
 	StructNamespace() string
 
-	// Field returns the fields name with the tag name taking precedence over the
+	// Field returns the field's name with the tag name taking precedence over the
 	// field's actual name.
 	//
 	// `RegisterTagNameFunc` must be registered to get tag value.
 	//
-	// eq. JSON name "fname"
+	// eg. JSON name "fname"
 	// see StructField for comparison
 	Field() string
 
 	// StructField returns the field's actual name from the struct, when able to determine.
 	//
-	// eq.  "FirstName"
+	// eg.  "FirstName"
 	// see Field for comparison
 	StructField() string
 

util.go

@@ -217,7 +217,7 @@ BEGIN:
 	panic("Invalid field namespace")
 }
 
-// asInt returns the parameter as a int64
+// asInt returns the parameter as an int64
 // or panics if it can't convert
 func asInt(param string) int64 {
 	i, err := strconv.ParseInt(param, 0, 64)