Website and manual improvements (#1967)

js/metrics.ts

@@ -34,7 +34,19 @@ function res(baseRes: null | msg.Base): Metrics {
   };
 }
 
-/** Receive metrics from the privileged side of Deno. */
+/** Receive metrics from the privileged side of Deno.
+ *
+ *    > console.table(Deno.metrics())
+ *   ┌──────────────────┬────────┐
+ *   │     (index)      │ Values │
+ *   ├──────────────────┼────────┤
+ *   │  opsDispatched   │   9    │
+ *   │   opsCompleted   │   9    │
+ *   │ bytesSentControl │  504   │
+ *   │  bytesSentData   │   0    │
+ *   │  bytesReceived   │  856   │
+ *   └──────────────────┴────────┘
+ */
 export function metrics(): Metrics {
   return res(dispatch.sendSync(...req()));
 }

website/index.html

@@ -17,7 +17,7 @@
         <img id="logo" src="images/deno_logo_3.svg" width=200>
         <div>
           <h1>Deno</h1>
-          A browser-like command line runtime
+          A secure JavaScript/TypeScript runtime built with V8, Rust, and Tokio
         </div>
       </header>
 
@@ -109,11 +109,11 @@ href="https://github.com/denoland/deno_install/blob/master/install.ps1">https://
       <p>Or a more complex one:</p>
 
       <pre><code class="typescript language-typescript">import { serve } from "https://deno.land/std@v0.3.2/http/server.ts";
-const s = serve("0.0.0.0:8000");
 
 async function main() {
-  for await (const req of s) {
-    req.respond({ body: new TextEncoder().encode("Hello World\n") });
+  const body = new TextEncoder().encode("Hello World\n");
+  for await (const req of serve(":8000")) {
+    req.respond({ body });
   }
 }
 

website/manual.md

@@ -148,10 +148,8 @@ submodule. However, you need to install separately:
 3. Python 2.
    [Not 3](https://github.com/denoland/deno/issues/464#issuecomment-411795578).
 
-Extra steps for Mac users:
-
-1. [XCode](https://developer.apple.com/xcode/)
-2. Openssl 1.1: `brew install openssl@1.1` (TODO: shouldn't be necessary)
+Extra steps for Mac users: install [XCode](https://developer.apple.com/xcode/)
+:(
 
 Extra steps for Windows users:
 
@@ -606,10 +604,17 @@ close(3);
 
 Metrics is deno's internal counters for various statics.
 
-```ts
-const { metrics } = Deno;
-console.log(metrics());
-// output like: { opsDispatched: 1, opsCompleted: 1, bytesSentControl: 40, bytesSentData: 0, bytesReceived: 176 }
+```shellsession
+> console.table(Deno.metrics())
+┌──────────────────┬────────┐
+│     (index)      │ Values │
+├──────────────────┼────────┤
+│  opsDispatched   │   9    │
+│   opsCompleted   │   9    │
+│ bytesSentControl │  504   │
+│  bytesSentData   │   0    │
+│  bytesReceived   │  856   │
+└──────────────────┴────────┘
 ```
 
 ### Schematic diagram