Tika Examples pages reference deprecated LanguageIdentifier class instead of LanguageDetector

The following Tika Examples pages reference the deprecated LanguageIdentifier class, including dead links:

• https://tika.apache.org/2.7.0/examples.html#Language_Identification
• https://tika.apache.org/2.6.0/examples.html#Language_Identification

I'd suggest that these sections should be rewritten to cover the LanguageDetector class instead: https://tika.apache.org/2.7.0/api/org/apache/tika/language/detect/LanguageDetector.html