Antoine Stevan b864a455f2
DOC: add a README to the standard library (#8304)
# Description
this PR a `README` to the standard library in
`crates/nu-utils/standard_library/` 👍

> **Note**
> you can have a look at what the `README` looks like
[here](https://github.com/amtoine/nushell/blob/doc/add-a-readme-to-the-standard-library/crates/nu-utils/standard_library/README.md#--welcome-to-the-standard-library-of-nushell--)

# User-Facing Changes
the user can now access some documentation about the standard library. 

# Tests + Formatting
```
$nothing
```

# After Submitting
```
$nothing
```
2023-03-04 08:30:36 -06:00
..
2023-03-03 09:41:13 -08:00
2022-02-07 14:54:06 -05:00

Nushell core libraries and plugins

These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.

Foundational libraries are split into two kinds of crates:

  • Core crates - those crates that work together to build the Nushell language engine
  • Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.

Plugins are likewise also split into two types:

  • Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
  • Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.