Added documentation for 'concat' function
@@ -2132,6 +2132,7 @@ to their full documentation.
| Function | Description |
|---------------------------|----------------------------------------------------------------------------------------------------------------|
| cast(x, type) | Convert `x` into an expression of `type`. |
+| concat(x, ...) | Cocatenate printed representations of the given arguments into a string. |
| instr(x, sub) | Find the first occurrence of `sub` in string `x` ([full doc](https://sqlite.org/lang_corefunc.html#instr)). |
| length(x) | Number of characters in a string `x` ([full doc](https://sqlite.org/lang_corefunc.html#length)). |
| lower(x) | Convert `x` to lower case ([full doc](https://sqlite.org/lang_corefunc.html#lower)). |
