Minor updates to Status Page Review document

- Minor spelling corrections
- Remove "docs" service as it's not longer available

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>

content/concepts/status-page-review.md

@@ -97,7 +97,7 @@ following options have been found:
 As there are an abundance of tools and services available which provide status
 page functionality, choosing from these existing solutions will be preferred
 over a home grown solution, assuming that one can be found to fit our
-requirements, with a home grown solution only concidered if none of the
+requirements, with a home grown solution only considered if none of the
 existing solutions are appropriate. Our approach is to:
 
 - Determine services that need to be monitored, this will be critical to
@@ -143,9 +143,6 @@ update/extend existing apt based installations.
 - **hawkBit**: This is a deployment management system that is being integrated
   into Apertis. It provides both a web UI and rest API. Both of these should be
   monitored.
-- **docs**: This holds the generated documentation for some packages. It is not
-  as important as some of the other pages, but wouldn't necessarily get noticed
-  quickly if it wasn't working.
 
 Whilst this list could arguably be reduced a little to just target core
 services, it would be prudent to choose a service that would allow Apertis room
@@ -180,7 +177,7 @@ later criterion, hence the lack of answers on less suitable options.
 
 # Recommendation
 
-Based on the above evalution, the top 4 options would appear to be:
+Based on the above evaluation, the top 4 options would appear to be:
 
 - Better Uptime
 - Gatus
@@ -192,13 +189,13 @@ self-hosted solution.
 
 A self-hosted solution has the advantage that it will remain available
 long-term, not being reliant on an outside provider, however they will also
-require mantenance and up keep. A externally provided service has the advantage
+require maintenance and up keep. An externally provided service has the advantage
 that it is hosted on distinct infrastructure from that hosting the other
 Apertis services and thus less likely to be made unavailable by a fault
 affecting the whole platform. An external service is also likely to provide a
 more independent and reliable evaluation of the platform status.
 
-Based on this our recommendation would be to utilise UptimeRobot to provide a
+Based on this our recommendation would be to utilize UptimeRobot to provide a
 status page for Apertis.
 
 # Risks