adding reference to cloud servers and misc. language edits

[laiyi-ohlsen]

• added reference to cloud servers
• added language about how to inquire about hosting a site
• changed language from "pods" to "sites" to be consistent to language elsewhere (lmk if others think different)

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This change is 

[stephen-soltesz]

A few suggested additions (variations or rejections are fine) and typo fixes.

Reviewable status: complete! 1 of 1 approvals obtained (waiting on @laiyi-ohlsen)

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_pages/status.md line 11 at r1 (raw file):
s/diverse location/diverse locations/

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Since 2008, we have sought hosting in well connected data centers where ISPs interconnect with one another ...

... to have high performance access to as many users as possible from as few locations as possible.

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Also clarify that a "virtual site" includes 1 or more virtual servers proportionate to demand, but no switches.

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s/we attempt/we prefer/

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_pages/status.md line 13 at r1 (raw file):

M-Lab places server infrastructure for conducting tests in diverse location around the world. Since 2008, we have sought hosting in well connected data centers where ISPs interconnect with one another. In 2022, we also began incoporating [virtual servers in cloud networks]({{ site.baseurl }}/blog/2022-mlab-to-the-cloud/#m-lab-to-the-cloud) into the platform, [starting with Google Cloud]({{ site.baseurl }}/blog/virtual-sites-gcp/#m-lab-to-the-cloud:-virtual-sites-in-all-google-cloud-regions).  Each M-Lab "site" consists of 3-4 servers and one switch, connected directly to an upstream provider. In large metro areas, we attempt to place multiple sites to obtain diversity in transit and routes.

If you are a service provider interest in hosting an M-Lab Measurement site, please [review our requirements]({{ site.baseurl }}/contribute/#host-or-sponsor-an-m-lab-measurement-site) and [reach out](mailto:hello@measurementlab.net). 

s/interest/interested/