"Readible" is not a correct spelling of the word; it should be spelled "readable." The IPA phonetic transcription for "readable" is /ˈriːdəbəl/, with emphasis on the first syllable "ree-d-uh-buhl." The incorrect spelling may have come about due to confusion with other words that end in "ible," such as "visible" or "incredible." However, it is important to use the correct spelling to avoid confusion and maintain readability.