chore: update demo docs and styles, add build task with watching for dev

Author: grega

docs/README.md

@@ -41,8 +41,7 @@ Then in the root directory of the project:
    npx http-server -p 8000
    ```
 
-2. Navigate to `http://localhost:8000/docs/local-demo.html`
-
+2. Navigate to `http://localhost:8000/docs`
 
 ## Local demo
 
@@ -55,6 +54,8 @@ The `local-demo.html` file in this directory is a copy of the hosted demo that c
 1. Make sure the project is built:
    ```bash
    npm run build:all
+   # or for continuous watching:
+   npm run dev:build
    ```
 
 2. Start up a local web server:

docs/styles.css

@@ -170,7 +170,6 @@ h1 {
 
 .pfem__why {
   color: #555;
-  font-style: italic;
   margin: 1rem 0;
   padding: 1rem 1rem;
   padding-left: 1rem;

package.json

@@ -25,6 +25,7 @@
     "build:browser": "esbuild src/index.browser.ts --bundle --format=esm --outfile=dist/index.browser.js --loader:.json=json",
     "build:assets": "mkdir -p dist/copydecks && cp -R copydecks/* dist/copydecks/",
     "build:all": "npm run build && npm run build:browser && npm run build:assets",
+    "dev:build": "npm run build:assets && tsc -p tsconfig.json --watch & esbuild src/index.browser.ts --bundle --format=esm --outfile=dist/index.browser.js --loader:.json=json --watch",
     "test": "vitest run",
     "dev:test": "vitest"
   },