Fix Kata github docs link and update distro wording

[jodh-intel]

As reported by @grahamwhaley here, the software page links to the wrong documentation. The page that needs updating seems to be:

• https://github.com/kata-containers/www.katacontainers.io/blob/main/src/pages/software/index.md

This is the minimal fix fwics (but see below):

diff --git a/src/pages/software/index.md b/src/pages/software/index.md
index 0fc1b65..d4152c1 100644
--- a/src/pages/software/index.md
+++ b/src/pages/software/index.md
@@ -28,7 +28,7 @@ architecture:
       linkText: Go to Git Repository
       title: Get Kata Containers
     - icon: /img/document_primary-dark.svg
-      link: 'https://github.com/kata-containers/documentation'
+      link: 'https://github.com/kata-containers/kata-containers/tree/main/docs'
       linkText: Get Started
       title: View the Documentation
   image: /img/[email protected]
@@ -69,7 +69,7 @@ determine if your host system is capable of running a Kata Container. [Learn how
     <div class="box is-primary-blue">
       <h4 class="box-title">Distributions</h4>
       <div class="box-entry">
-        Kata Containers is available on many distributions. View the [distro specific install guides](https://github.com/kata-containers/documentation/tree/master/install) for: <br />
+        Kata Containers is available on many distributions. View the [distro specific install guides](https://github.com/kata-containers/kata-containers/tree/main/docs/install) for: <br />
         <div class="columns">
           <div class="column">
             <ul>

However, the list of distributions is going to confuse users imho. We used to have separate install guides for each distro, but we don't do that any more so I would be tempted to remove the list of distributions on that page so that it says something like this:

Kata Containers is available on many distributions. See the installation documentation for further details.

/cc @iamweswilson, @SunnyCai1.