James Rodewig 562607d3f5 [DOCS] Reformat n-gram token filter docs (#49438)
Reformats the edge n-gram and n-gram token filter docs. Changes include:

* Adds title abbreviations
* Updates the descriptions and adds Lucene links
* Reformats parameter definitions
* Adds analyze and custom analyzer snippets
* Adds notes explaining differences between the edge n-gram and n-gram
  filters

Additional changes:
* Switches titles to use "n-gram" throughout.
* Fixes a typo in the edge n-gram tokenizer docs
* Adds an explicit anchor for the `index.max_ngram_diff` setting
2019-11-22 10:38:50 -05:00
..