Original text:
<del> YAML Media Types </del>  draft-ietf-httpapi-yaml-mediatypes-latest Abstract YAML YAML is a data serialization format that is widely used on the Internet, including in the API sector (e.g. see oas) but the relevant <del> media type and structured syntax suffix are not registered by IANA. </del>  To increase interoperability when exchanging YAML data and leverage content negotiation mechanisms when exchanging YAML resources, this 2. This section describes the information required to register the above <del> media types according to </del>  2.1. media type structured syntax suffix registration form follows.  See MEDIATYPE for definitions of each of the registration form headings. <del> YAML Ain't Markup LanguageML (YAML) </del>  +yaml 3.1. <del> YAML is an evolving language and, in time, some features have been added, and others removed. </del>  <del> While this document is based on a given YAML version YAML, media types registration does not imply a specific version.  This allows </del>  content negotiation of version-independent YAML resources. Implementers concerned about features related to a specific YAML <del> version can specify it in the documents using the "%YAML" directive (see Section 6.8.1 of YAML). </del>  3.2. 5. <del> This specification defines the following new Internet media types </del>  MEDIATYPE. IANA has updated the "Media Types" registry at

Reviewer comments:
addressing (and a few minor editorial changes thrown in as well).
This is probably left over from earlier drafts that did cover multiple media types.
There are a couple more places that use the plural form "media types". Unless I am missing something, these all should be changed to singular form.
It's and . I don't have preferences and the singular is OK to me. Feel free to PR :)
that's what i also thought but then again isn't a media type (as i am sure you know). let's make NAME the tie-breaker!
Let's go with the singular form.
fixed via

Revised text:
 <ins> YAML Media Type </ins> draft-ietf-httpapi-yaml-mediatypes-latest Abstract YAML YAML is a data serialization format that is widely used on the Internet, including in the API sector (e.g. see oas) but the relevant  <ins> media type and structured syntax suffix previously had not been registered by IANA. </ins> To increase interoperability when exchanging YAML data and leverage content negotiation mechanisms when exchanging YAML resources, this 2. This section describes the information required to register the above  <ins> media type according to </ins> 2.1. media type structured syntax suffix registration form follows.  See MEDIATYPE for definitions of each of the registration form headings.  <ins> YAML Ain't Markup Language (YAML) </ins> +yaml 3.1.  <ins> YAML is an evolving language and, over time, some features have been added and others removed. </ins>  <ins> While this document is based on a given YAML version YAML, the media type registration does not imply a specific version.  This allows </ins> content negotiation of version-independent YAML resources. Implementers concerned about features related to a specific YAML  <ins> version can specify it in documents using the "%YAML" directive (see Section 6.8.1 of YAML). </ins> 3.2. 5.  <ins> This specification defines the following new Internet media type </ins> MEDIATYPE. IANA has updated the "Media Types" registry at