Add JSPM import maps tools

README.md

@@ -621,14 +621,18 @@ would give you the appropriately-mapped location of `resource.json` within the `
 
 Several members of the community have been working on polyfills and tooling related to import maps. Here are the ones we know about:
 
+* [jspm](https://www.npmjs.com/package/jspm) is a command-line import map package management tool.
+* [jspm-vscode](https://marketplace.visualstudio.com/items?itemName=JSPM.jspm-vscode) is a [VSCode](https://code.visualstudio.com) extension for generating, injecting into HTML, and updating import maps.
+* https://generator.jspm.io is an online generator for generating import maps.
+* [@jspm/generator](https://www.npmjs.com/package/@jspm/generator) is the low-level core library for working with import map generation.
 * [@import-maps/resolve](https://www.npmjs.com/package/@import-maps/resolve) resolves a specifier relative to an import map.
 * [@jsenv/importmap-node-module](https://www.npmjs.com/package/@jsenv/importmap-node-module) generates an import map from your `package.json` and `node_modules/` directories.
-* [@jsenv/importmap-eslint-resolver](https://www.npmjs.com/package/@jsenv/importmap-eslint-resolver) enables import map resolution in [ESLint](https://eslint.org/)
+* [@jsenv/importmap-eslint-resolver](https://www.npmjs.com/package/@jsenv/importmap-eslint-resolver) enables import map resolution in [ESLint](https://eslint.org/).
 * [@node-loader/import-maps](https://www.npmjs.com/package/@node-loader/import-maps) is a [Node.js loader](https://nodejs.org/dist/latest/docs/api/esm.html#esm_experimental_loaders) for using import maps in Node.js.
 * [@web/dev-server-import-maps](https://www.npmjs.com/package/@web/dev-server-import-maps) allows using import maps during development and testing with [@web/dev-server](https://www.npmjs.com/package/@web/dev-server) and [@web/test-runner](https://www.npmjs.com/package/@web/test-runner).
 * [Deno](https://github.com/denoland/deno) is a JavaScript/TypeScript runtime with [built-in support for import maps](https://deno.land/manual/linking_to_external_code/import_maps).
 * [es-module-shims](https://github.com/guybedford/es-module-shims) provides an import maps polyfill for browsers with basic ES modules support.
-* [import-map-deployer](https://github.com/single-spa/import-map-deployer) is designed for updating import map files from CI
+* [import-map-deployer](https://github.com/single-spa/import-map-deployer) is designed for updating import map files from CI.
 * [import-map-overrides](https://www.npmjs.com/package/import-map-overrides) allows using import maps to improve development flow by pointing to local versions.
 * [importly](https://www.npmjs.com/package/importly) generates an import map from a `package.json`.
 * [SystemJS](https://github.com/systemjs/systemjs) provides a polyfill-like workflow for using import maps in older browsers with the System module format and `<script type="systemjs-importmap">`.