Dimitrije Bulaja

### Description: - [x] Provide missing features documentation to the website - [x] Address "TBD" in the current website documentation structure - [x] Provide queries documentation - [x] Provide requests...

Implement Aggregations

5

Aggregations - [ ] Support adjacencyMatrixAgg - [x] Support avgAgg - [x] Support bucketSelectorPipelineAgg - [x] Support bucketSortPipelineAgg - [x] Support cardinalityAgg - [ ] Support childrenAgg - [ ]...

Some aggregations support runtime fields. It's good if aggregation needs to be run on something more complex than the values in a single field. More informations about this topic can...

Extra letters in aggregations responses

3

There are sometimes extra letters for `terms` and for `percentiles` aggregations in the elasticsearch response. Something like this happens: `sterms#aggName`

Currently we are using fuzziness parameter in the `fuzzy` query as a String, it should be considered that we use enum instead. More informations about Fuzziness can be found here:...

At the moment we have only `Int` supported, but in Elasticsearch documentation there is also percentage and combination of both. You can find more informations here: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-minimum-should-match.html