[doc] README: list net and stats in the libraries table; note upstream modules

README.md

@@ -43,15 +43,17 @@ Inspired by the [*Starlight*](https://github.com/starlight-go/starlight) and [*S
 | [`http`](/lib/http)               | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/http.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/http)               | HTTP client and server handler implementation for Starlark    |
 | [`json`](/lib/json)               | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/json.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/json)               | Utilities for converting Starlark values to/from JSON strings |
 | [`log`](/lib/log)                 | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/log.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/log)                 | Functionality for logging messages at various severity levels |
+| [`net`](/lib/net)                 | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/net.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/net)                 | Network reachability checks: TCP/HTTP ping and DNS lookup     |
 | [`path`](/lib/path)               | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/path.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/path)               | Functions to manipulate directories and file paths            |
 | [`random`](/lib/random)           | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/random.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/random)           | Functions to generate random values for various distributions |
 | [`re`](/lib/re)                   | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/re.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/re)                   | Regular expression functions for Starlark (legacy, frozen)    |
 | [`regex`](/lib/regex)             | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/regex.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/regex)             | Python-style regex (RE2) with Match objects, flags, named groups |
 | [`runtime`](/lib/runtime)         | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/runtime.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/runtime)         | Provides Go and app runtime information                       |
 | [`serial`](/lib/serial)           | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/serial.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/serial)           | Lossless data-value serialization (bytes/set/tuple/bigint/time) |
+| [`stats`](/lib/stats)             | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/stats.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/stats)             | Statistics: mean/median/stddev, correlation, percentiles, etc. |
 | [`string`](/lib/string)           | [![godoc](https://pkg.go.dev/badge/github.com/1set/starlet/lib/string.svg)](https://pkg.go.dev/github.com/1set/starlet/lib/string)           | Constants and functions to manipulate strings                 |
 
-For extensive documentation on each library, please refer to the respective README files in the [`lib`](/lib) directory. Additionally, *Starlet* includes an array of official modules. You can explore all provided modules by using [`GetAllBuiltinModuleNames()`](https://pkg.go.dev/github.com/1set/starlet#GetAllBuiltinModuleNames) method.
+For extensive documentation on each library, please refer to the respective README files in the [`lib`](/lib) directory. Additionally, *Starlet* includes an array of official modules. You can explore all provided modules by using [`GetAllBuiltinModuleNames()`](https://pkg.go.dev/github.com/1set/starlet#GetAllBuiltinModuleNames) method. The `math`, `struct`, and `time` modules are re-exported from [go.starlark.net](https://pkg.go.dev/go.starlark.net) and documented upstream, so they have no `lib/` README here.
 
 ## Installation