Improve readability

wiki/src/blueprint/translation_platform.mdwn

@@ -292,7 +292,7 @@ and used in the cronjob `update_weblate_components.py
 Run [`manage.py
 update_index`](https://docs.weblate.org/en/weblate-2.20/admin/management.html#update-index).
 This updates Weblate's index for fulltext search. It is recommended by
-Weblate to run it every 5 mins.
+Weblate upstream authors to run it every 5 mins.
 
 <a id="staging-website"></a>
 
@@ -323,7 +323,7 @@ This allows:
 
    [https://staging.tails.boum.org/last-sanity-errors.txt](https://staging.tails.boum.org/last-sanity-errors.txt)
 
-### What is done behind the scene to generate a new version of the staging website?
+### What is done behind the scenes to generate a new version of the staging website?
 
 The cronjob
 [`update-staging-website.sh`](https://git-tails.immerda.ch/puppet-tails/tree/files/weblate/scripts/update-staging-website.sh)