[doc] update a part of the documents for ORT JavaScript (#7935)

* update api-basics.md

* update install.md

* add placeholder for "build for web"

* update js api

* add more sections in js-api.md

* update "coming soon" for how-to-build-web

* Update "Web" -> "web" in title of web.md

* Update install.md

docs/how-to/build/android-ios.md

@@ -1,7 +1,7 @@
 ---
 title: Build for Android/iOS
 parent: Build ORT
-nav_order: 4
+nav_order: 5
 grand_parent: How to
 ---
 

docs/how-to/build/inferencing.md

@@ -101,7 +101,7 @@ GCC 4.x and below are not supported.
 | OS/Compiler | Supports VC  | Supports GCC     |  Supports Clang  |
 |-------------|:------------:|:----------------:|:----------------:|
 |Windows 10   | YES          | Not tested       | Not tested       |
-|Linux        | NO           | YES(gcc>=8)    | Not tested       |
+|Linux        | NO           | YES(gcc>=8)      | Not tested       |
 |macOS        | NO           | Not tested       | YES (Minimum version required not ascertained)|
 
 ---

docs/how-to/build/reduced.md

@@ -2,7 +2,7 @@
 title: Build with reduced size
 grand_parent: How to
 parent: Build ORT
-nav_order: 5
+nav_order: 6
 ---
 
 # Build ORT with reduced size

docs/how-to/build/web.md

@@ -0,0 +1,10 @@
+---
+title: Build for web
+parent: Build ORT
+nav_order: 4
+grand_parent: How to
+---
+
+# Build ONNX Runtime for Web
+
+ *[COMING SOON]* 

docs/how-to/install.md

@@ -39,7 +39,7 @@ The following build variants are available as officially supported packages. Oth
 |Android|[**com.microsoft.onnxruntime:onnxruntime-mobile**](https://search.maven.org/artifact/com.microsoft.onnxruntime/onnxruntime-mobile) ||
 |iOS (C/C++)|CocoaPods: **onnxruntime-mobile-c**||
 |Objective-C|CocoaPods: **onnxruntime-mobile-objc**||
-|Node.js|[**onnxruntime-node**](https://www.npmjs.com/package/onnxruntime)|
+|Node.js|[**onnxruntime-node**](https://www.npmjs.com/package/onnxruntime-node)||
 |Web|[**onnxruntime-web**](https://www.npmjs.com/package/onnxruntime-web)||
 
 
@@ -63,4 +63,4 @@ by running `locale-gen en_US.UTF-8` and `update-locale LANG=en_US.UTF-8`
 |---|---|---|
 |PyTorch (CUDA 10.2)|[**onnxruntime-training**](https://pypi.org/project/onnxruntime-training)|[onnxruntime_nightly_cu102](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_nightly_cu102.html)|
 |PyTorch (CUDA 11.1)|[**onnxruntime_stable_cu111**](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_stable_cu111.html)|[onnxruntime_nightly_cu111](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_nightly_cu111.html)|
-|[*Preview*] PyTorch (ROCm 4.2)|[**onnxruntime_stable_rocm42**](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_stable_rocm42.html)|[onnxruntime_nightly_rocm42](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_nightly_rocm42.html)|
+|[*Preview*] PyTorch (ROCm 4.2)|[**onnxruntime_stable_rocm42**](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_stable_rocm42.html)|[onnxruntime_nightly_rocm42](https://onnxruntimepackages.z14.web.core.windows.net/onnxruntime_nightly_rocm42.html)|

docs/reference/api/js-api.md

@@ -0,0 +1,40 @@
+---
+title: JavaScript API
+parent: API docs
+grand_parent: Reference
+---
+
+# ONNX Runtime JavaScript API
+{: .no_toc }
+
+ONNX Runtime JavaScript API is the unified interface used by [ONNX Runtime Node.js binding](https://github.com/microsoft/onnxruntime/tree/master/js/node), [ONNX Runtime Web](https://github.com/microsoft/onnxruntime/tree/master/js/web) and [ONNX Runtime for React Native](https://github.com/microsoft/onnxruntime/tree/master/js/react_native).
+
+## Contents
+{: .no_toc }
+
+* TOC placeholder
+{:toc}
+
+
+## Supported Versions
+
+- ONNX Runtime Node.js binding: Node.js v12.x+ or Electron v5.x+
+- ONNX Runtime Web: mainstream modern browsers on Windows, macOS, Android and iOS.
+- ONNX Runtime for React Native: TBD
+
+## Builds
+
+Builds are published to **npm** and can be installed using `npm install`
+
+| Package | Artifact  | Description | Supported Platforms |
+|---------|-----------|-------------|---------------------|
+|Node.js binding|[onnxruntime-node](https://www.npmjs.com/package/onnxruntime-node)|CPU (Release)| Windows x64 CPU NAPI_v3, Linux x64 CPU NAPI_v3, MacOS x64 CPU NAPI_v3|
+|Web|[onnxruntime-web](https://www.npmjs.com/package/onnxruntime-web)||Browsers (wasm, webgl), Node.js (wasm)|
+|React Native|[onnxruntime-react-native](https://www.npmjs.com/package/onnxruntime-react-native)|||
+
+For Node.js binding, to use on platforms without pre-built binaries, you can [build Node.js binding from source](../../how-to/build/inferencing.md#apis-and-language-bindings) and consume using `npm install <onnxruntime_repo_root>/js/node/`.
+
+## API Reference
+See Typescript declarations for [Inference Session](https://github.com/microsoft/onnxruntime/blob/master/js/common/lib/inference-session.ts), [Tensor](https://github.com/microsoft/onnxruntime/blob/master/js/common/lib/tensor.ts) and [Environment Flags](https://github.com/microsoft/onnxruntime/blob/master/js/common/lib/env.ts) for reference.
+
+See also [ONNX Runtime JavaScript examples](https://github.com/microsoft/onnxruntime-inference-examples/tree/main/js).

docs/reference/api/nodejs-api.md

@@ -1,37 +0,0 @@
----
-title: Node.js API
-parent: API docs
-grand_parent: Reference
----
-
-# ONNX Runtime Node.js API
-{: .no_toc }
-
-ONNX Runtime Node.js binding enables Node.js applications to run ONNX model inference.
-
-## Contents
-{: .no_toc }
-
-* TOC placeholder
-{:toc}
-
-## Supported Versions
-Node.js v12.x+ or Electron v5.x+
-
-## API Reference
-See [Typescript declarations](https://github.com/microsoft/onnxruntime/blob/master/nodejs/lib/inference-session.ts) and refer to [samples](#samples) for reference.
-
-## Builds
-Builds are published to **npm** and can be installed using `npm install`
-
-| Artifact      | Description | Supported Platforms |
-|-----------    |-------------|---------------------|
-|[onnxruntime](https://www.npmjs.com/package/onnxruntime)|CPU (Release)| Windows x64 CPU NAPI_v3, Linux x64 CPU NAPI_v3, MacOS x64 CPU NAPI_v3|
-|onnxruntime@dev| CPU (Dev)|Windows x64 CPU NAPI_v3, Linux x64 CPU NAPI_v3, MacOS x64 CPU NAPI_v3|
-
-To use on platforms without pre-built binaries, you can [build Node.js binding from source]((../../how-to/build.md#apis-and-language-bindings)) and consume using `npm install <onnxruntime_repo_root>/nodejs/`. 
-
-## Samples
-See [Tutorials: Basics - NodeJS](../../tutorials/inferencing/api-basics.md#nodejs)
-
-

docs/tutorials/inferencing/api-basics.md

@@ -36,5 +36,5 @@ These tutorials demonstrate basic inferencing with ONNX Runtime with each langua
 ## Java
 * [Number recognition (MNIST)](../tutorials/mnist_java.html)
 
-## Node.js
-* [Basic usage](https://github.com/microsoft/onnxruntime/tree/master/samples/nodejs)
+## JavaScript
+* [ONNX Runtime JavaScript examples](https://github.com/microsoft/onnxruntime-inference-examples/tree/main/js)