Change "MIME type" to "Media Type".

MIME type is the historic nomenclature for Media Type, see e.g. https://www.iana.org/assignments/media-types/media-types.xhtml.

PiperOrigin-RevId: 549394435
Change-Id: I000e044a35ec44392e9c41bab6383aa89cdefc49

doc/XMLreference.rst

@@ -2163,9 +2163,10 @@ file.
 .. _asset-texture-content_type:
 
 :at:`content_type`: :at-val:`string, optional`
-   If the file attribute is specified, then this sets the `MIME <https://en.wikipedia.org/wiki/MIME>`_ type of the file
+   If the file attribute is specified, then this sets the
-   to be loaded. Any filename extensions will be ignored.  Currently ``image/png`` and ``image/vnd.mujoco.texture`` are
+   `Media Type <https://www.iana.org/assignments/media-types/media-types.xhtml>`_ (formerly known as MIME types) of the
-   supported.
+   file to be loaded. Any filename extensions will be ignored.  Currently ``image/png`` and ``image/vnd.mujoco.texture``
+   are supported.
 
 .. _asset-texture-file:
 
@@ -2352,9 +2353,10 @@ also known as terrain map, is a 2D matrix of elevation data. The data can be spe
 .. _asset-hfield-content_type:
 
 :at:`content_type`: :at-val: `string, optional`
-   If the file attribute is specified, then this sets the `MIME <https://en.wikipedia.org/wiki/MIME>`_ type of the file
+   If the file attribute is specified, then this sets the
-   to be loaded. Any filename extensions will be overloaded.  Currently ``image/png`` and ``image/vnd.mujoco.hfield``
+   `Media Type <https://www.iana.org/assignments/media-types/media-types.xhtml>`_ (formerly known as MIME types) of the
-   are supported.
+   file to be loaded. Any filename extensions will be overloaded.  Currently ``image/png`` and
+   ``image/vnd.mujoco.hfield`` are supported.
 
 .. _asset-hfield-file:
 
@@ -2524,9 +2526,10 @@ The full list of processing steps applied by the compiler to each mesh is as fol
 .. _asset-mesh-content_type:
 
 :at:`content_type`: :at-val:`string, optional`
-   If the file attribute is specified, then this sets the `MIME <https://en.wikipedia.org/wiki/MIME>`_ type of the file
+   If the file attribute is specified, then this sets the
-   to be loaded. Any filename extensions will be overloaded.  Currently ``model/vnd.mujoco.msh``, ``model/obj``, and
+   `Media Type <https://www.iana.org/assignments/media-types/media-types.xhtml>`_ (formerly known as MIME type) of the
-   ``model/stl`` are supported.
+   file to be loaded. Any filename extensions will be overloaded.  Currently ``model/vnd.mujoco.msh``, ``model/obj``,
+   and ``model/stl`` are supported.
 
 .. _asset-mesh-file:
 

doc/changelog.rst

@@ -15,8 +15,8 @@ General
   :ref:`Cartesian actuator<actuator-general-refsite>` forces are realizable by individual motors at the joints.
   See :ref:`CForceRange` for details.
 - Added an optional ``content_type`` attribute to hfield, texture, and mesh assets. This attribute supports a formatted
-  `MIME <https://en.wikipedia.org/wiki/MIME>`_ string used to determine the type of the asset file without resorting to
+  `Media Type <https://www.iana.org/assignments/media-types/media-types.xhtml>`_ (previously known as MIME type) string
-  pulling the type from the file extension.
+  used to determine the type of the asset file without resorting to pulling the type from the file extension.
 - Added analytic derivatives for quaternion :ref:`subtraction<mjd_subQuat>` and :ref:`integration<mjd_quatIntegrate>`
   (rotation with an angular velocity). Derivatives are in the 3D tangent space.
 - Added :ref:`mjv_connector` which has identical functionality to :ref:`mjv_makeConnector`, but with more convenient