Fix spelling and other minor improvements

doc/development/i18n/externalization.md

@@ -231,10 +231,10 @@ This makes use of [`Intl.DateTimeFormat`].
 - In Ruby/HAML, we have two ways of adding format to dates and times:
 
   1. **Through the `l` helper**, i.e. `l(active_session.created_at, format: :short)`. We have some predefined formats for
-[dates](https://gitlab.com/gitlab-org/gitlab-ce/blob/v11.7.0/config/locales/en.yml#L54) and [times](https://gitlab.com/gitlab-org/gitlab-ce/blob/v11.7.0/config/locales/en.yml#L261).
+  [dates](https://gitlab.com/gitlab-org/gitlab-ce/blob/v11.7.0/config/locales/en.yml#L54) and [times](https://gitlab.com/gitlab-org/gitlab-ce/blob/v11.7.0/config/locales/en.yml#L261).
   If you need to add a new format, because other parts of the code could benefit from it,
   you'll need to add it to [en.yml](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/config/locales/en.yml) file.
-  2. **Through `strftime`**, i.e. `milestone.start_date.strftime('%b %-d')`. We use `strftime` in case none of the formats
+  1. **Through `strftime`**, i.e. `milestone.start_date.strftime('%b %-d')`. We use `strftime` in case none of the formats
   defined on [en.yml](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/config/locales/en.yml) matches the date/time
   specifications we need, and if there is no need to add it as a new format because is very particular (i.e. it's only used in a single view).
 

doc/development/i18n/index.md

@@ -51,4 +51,4 @@ able to proofread and instructions on becoming a proofreader yourself.
 
 Translations are typically included in the next major or minor release.
 
-See [Merging translations from Crowdin](merging_translations.md)
+See [Merging translations from Crowdin](merging_translations.md).

doc/development/i18n/merging_translations.md

@@ -4,7 +4,7 @@ Crowdin automatically syncs the `gitlab.pot` file presenting newly
 added translations to the community of translators.
 
 At the same time, it creates a merge request to merge all newly added
-& approved translations. Find the [merge reqeust created by
+& approved translations. Find the [merge request created by
 `gitlab-crowdin-bot`](https://gitlab.com/gitlab-org/gitlab-ee/merge_requests?scope=all&utf8=%E2%9C%93&state=opened&author_username=gitlab-crowdin-bot)
 to see new and merged merge requests. They are created in EE and need
 to be ported to CE manually.