add snippet readme and update version to 1.0.1 (#1844)

* add snippet readme

* add usage

tools/applicationinsights-web-snippet/README.md

@@ -0,0 +1,54 @@
+# Microsoft Application Insights JavaScript SDK - Web Snippet
+
+[![Build Status](https://travis-ci.org/microsoft/ApplicationInsights-JS.svg?branch=master)](https://travis-ci.org/microsoft/ApplicationInsights-JS)
+[![npm version](https://badge.fury.io/js/%40microsoft%2Fapplicationinsights-web-snippet.svg)](https://badge.fury.io/js/%40microsoft%2Fapplicationinsights-web-snippet)
+
+Web Snippet for the Application Insights Javascript SDK
+
+This project exists to publish latest Application Insights Javascript Web Snippet.
+
+## Basic Usage
+
+Add the Application Insights Web Snippet to your app's dependencies and package.json.
+```
+npm i @microsoft/applicationinsights-web-snippet
+```
+
+
+Import web snippet from the package.
+```
+import { webSnippet } from "@microsoft/applicationinsights-web-snippet";
+```
+
+
+Replace "INSTRUMENTATION_KEY" with valid Instrumentation Key.
+```
+webSnippet.replace("INSTRUMENTATION_KEY", your_valid_ikey);
+```
+
+More details on web snippet, see [Web Snippet](https://github.com/microsoft/ApplicationInsights-JS#snippet-setup-ignore-if-using-npm-setup).
+
+## Build
+```
+npm install -g grunt-cli
+npm install
+npm run build --silent
+```
+
+## Contributing
+
+This project welcomes contributions and suggestions.  Most contributions require you to agree to a
+Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
+the rights to use your contribution. For details, visit https://cla.microsoft.com.
+
+When you submit a pull request, a CLA-bot will automatically determine whether you need to provide
+a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions
+provided by the bot. You will only need to do this once across all repos using our CLA.
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
+contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
+
+## License
+
+[MIT](LICENSE)

tools/applicationinsights-web-snippet/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@microsoft/applicationinsights-web-snippet",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Microsoft Application Insights Web Snippet",
   "main": "dist/node/applicationinsights-web-snippet.js",
   "module": "dist/esm/applicationinsights-web-snippet.js",