docs: fix readme

- add fzf search syntax taken from fzf project
- also includes OR operator description taken from fzf project

README.md

@@ -3,7 +3,28 @@
 **fzf-native** is a `c` port of **[fzf][fzf]**. It only covers the algorithm and
 implements few functions to support calculating the score.
 
-This means that the [fzf syntax](https://github.com/junegunn/fzf#search-syntax).
+This means that the [fzf syntax](https://github.com/junegunn/fzf#search-syntax)
+is supported:
+
+| Token     | Match type                 | Description                          |
+| --------- | -------------------------- | ------------------------------------ |
+| `sbtrkt`  | fuzzy-match                | Items that match `sbtrkt`            |
+| `'wild`   | exact-match (quoted)       | Items that include `wild`            |
+| `^music`  | prefix-exact-match         | Items that start with `music`        |
+| `.mp3$`   | suffix-exact-match         | Items that end with `.mp3`           |
+| `!fire`   | inverse-exact-match        | Items that do not include `fire`     |
+| `!^music` | inverse-prefix-exact-match | Items that do not start with `music` |
+| `!.mp3$`  | inverse-suffix-exact-match | Items that do not end with `.mp3`    |
+
+
+A single bar character term acts as an OR operator. For example, the following
+query matches entries that start with `core` and end with either `go`, `rb`,
+or `py`.
+
+```
+^core go$ | rb$ | py$
+```
+
 This is an advantage over the more simpler `fzy` algorithm, which is also
 available for telescope (as native component or as lua component).