Update README.md

Co-authored-by: The web walker <[email protected]>
Signed-off-by: Harvey Sanders <[email protected]>

README.md

@@ -87,7 +87,7 @@ await normalize('söme stüff with áccènts'); // 'some stuff with accents'
 
 ### `normalize([input])`
 
-- `input` <[string][string-mdn-url]> input string that contains accents/diacritics.
+- `input` <[string][string-mdn-url]> Input string that contains accents/diacritics.
 - returns: <[Promise][promise-mdn-url]<[string][string-mdn-url]>> Promise which resolves with normalized input string.
 
 This method normalizes any accents/ diacritics found in a given input string and output a normalized string as a result.