chore: Normalize minor locale variations in comments

Author: alerque

fluent-bundle/examples/custom_type.rs

@@ -8,7 +8,7 @@
 //
 // Lastly, we'll also create a new formatter which will be memoizable.
 //
-// The type and its options are modelled after ECMA402 Intl.DateTimeFormat.
+// The type and its options are modeled after ECMA402 Intl.DateTimeFormat.
 use intl_memoizer::Memoizable;
 use unic_langid::LanguageIdentifier;
 

fluent-fallback/examples/simple-fallback.rs

@@ -32,7 +32,7 @@ use rustc_hash::FxHashSet;
 use unic_langid::{langid, LanguageIdentifier};
 
 /// This helper struct holds the scheme for converting
-/// resource paths into full paths. It is used to customise
+/// resource paths into full paths. It is used to customize
 /// `fluent-fallback::SyncLocalization`.
 struct Bundles {
     res_path_scheme: PathBuf,