[homepage] Update homepage. (#772)

* [homepage] Update homepage.

- Add newly identified organizational users.
- Add a more visible link to the "about" page and github.
- Increase image size to highlight it more.

docs/layouts/index.html

@@ -1,5 +1,5 @@
 {{ define "main" }}
-<section class="section container-fluid mt-n3 pb-3" style="padding: 40px 50px;">
+<section class="section container-fluid mt-n3 pb-3" style="padding: 40px 50px">
   <div class="row justify-content-center mt-2">
     <div class="col-lg-8 text-center">
       <h1 class="mb-3">{{ .Title }}</h1>
@@ -10,9 +10,16 @@ <h3 class="mb-5">{{ .Params.lead | safeHTML }}</h3>
         role="button"
         >Get Started</a
       >
+      <br />
+      (<a href="/docs/about">About Cloudprober</a>,
+      <a a href="https://github.com/cloudprober/cloudprober">Github</a>)
     </div>
     <div class="col-lg-8">
-      <img width=440 style="float:right; margin-bottom: 10px;" src="/homepage.svg">
+      <img
+        width="600"
+        style="float: right; margin-bottom: 10px; padding-top: 20px"
+        src="/homepage.svg"
+      />
     </div>
   </div>
 </section>
@@ -21,46 +28,52 @@ <h3 class="mb-5">{{ .Params.lead | safeHTML }}</h3>
   <div class="container">
     <div class="row justify-content-center text-center">
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Fast native checks ⚡️</h2>
-        <p style="font-weight:400">
-          Cloudprober comes with efficient, highly scalable, built-in probes for
+        <h2 class="h3" style="font-weight: 700">Fast native checks ⚡️</h2>
+        <p style="font-weight: 400">
+          Cloudprober comes with efficient, highly scalable, built-in
+          <a href="https://cloudprober.org/docs/overview/probe/">probes</a> for
           common types of checks: HTTP (REST APIs), PING, DNS, gRPC, TCP, UDP.
         </p>
       </div>
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Trusted by multiple large organizations</h2>
-        <p style="font-weight:400">
-          <span class=emphasize>
-            Google, Apple, DoorDash, Uber, Cloudflare, Yahoo Japan, Goldman Sachs, Robinhood,
-            Hostinger, Disney+</span>, and more.
+        <h2 class="h3" style="font-weight: 700">
+          Trusted by multiple large organizations
+        </h2>
+        <p style="font-weight: 400">
+          <span class="emphasize">
+            Google, Tesla, Apple, DoorDash, Uber, Cloudflare, Yahoo Japan,
+            Goldman Sachs, Robinhood, Hostinger, Disney+</span
+          >, and more.
         </p>
       </div>
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Easy integration</h2>
-        <p style="font-weight:400">
+        <h2 class="h3" style="font-weight: 700">Easy integration</h2>
+        <p style="font-weight: 400">
           Out of the box, config based, integration with many popular monitoring
-          and alerting systems: Prometheus, Grafana, DataDog, PostgreSQL, AWS Cloudwatch,
-          Stackdriver, PagerDuty, Opsgenie, and more.
+          and alerting systems: Prometheus, Grafana, DataDog, PostgreSQL, AWS
+          Cloudwatch, Stackdriver, PagerDuty, Opsgenie, and more.
         </p>
       </div>
     </div>
     <div class="row justify-content-center text-center">
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Flexible custom checks</h2>
+        <h2 class="h3" style="font-weight: 700">Flexible custom checks</h2>
         <p>
-          Run any binary or script as a probe (see: <a href="docs//how-to/external-probe">external probe</a>), and have probe results appear in
-          standard metrics.
+          Run any binary or script as a probe (see:
+          <a href="docs//how-to/external-probe">external probe</a>), and have
+          probe results appear in standard metrics.
         </p>
       </div>
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Automated targets discovery</h2>
+        <h2 class="h3" style="font-weight: 700">Automated targets discovery</h2>
         <p>
-          Reliable, automated <a href="docs//how-to/targets">targets discovery</a> for Kubernetes and GCP
-          resources.
+          Reliable, automated
+          <a href="docs//how-to/targets">targets discovery</a> for Kubernetes
+          and GCP resources.
         </p>
       </div>
       <div class="col-lg-5">
-        <h2 class="h3" style="font-weight:700">Deployment friendly</h2>
+        <h2 class="h3" style="font-weight: 700">Deployment friendly</h2>
         <p>
           Written entirely in Go. Available as a standalone static binary or
           through a docker image. Multiple ways to configure, including