add introduction, fix grammar, add tunnel script and preview host whitelist

Author: nemanjam

astro.config.ts

@@ -42,5 +42,9 @@ export default defineConfig({
     build: {
       sourcemap: false,
     },
+    server: {
+      // applies only to Vite dev server
+      allowedHosts: ['localhost', 'preview.amd1.nemanjamitic.com'],
+    },
   },
 });

docs/working-notes/todo4.md

@@ -156,6 +156,22 @@ flex flex-col and flex-grow until (including) client component to prevent layout
 -----------------
 // try pixelated blur
 style="image-rendering: pixelated;"
+-------
+// tunnel preview
+ssh -R *:1082:localhost:3000 amd1c
+https://preview.amd1.nemanjamitic.com
+
+vite: {
+  build: {
+    sourcemap: false,
+  },
+  server: {
+    allowedHosts: ['preview.amd1.nemanjamitic.com'],
+  },
+},
+-------
+open external md links in new tab by default
+https://cosmicthemes.com/blog/astro-mdx-external-link/
 ```
 
 

package.json

@@ -27,6 +27,7 @@
     "docker:push": "docker push nemanjamitic/nemanjam.github.io",
     "pi": "yarn build:nginx:pi && yarn deploy:nginx:pi",
     "nginx": "yarn build:nginx && yarn deploy:nginx",
+    "tunnel": "ssh -R *:1082:localhost:3000 amd1c",
     "dc:up": "docker compose up --build --force-recreate -d"
   },
   "dependencies": {