<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/89135>89135</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [libc][docs] some code-blocks in the docs are missing highlighting languages
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          Flandini
      </td>
    </tr>
</table>

<pre>
    On 1460b4964c7ada2f7536006722c8585b5bd0a1b5, I am getting the following error:

```
Warning, treated as error:
.../llvm-project/libc/docs/dev/config_options.rst:14:Error in "code-block" directive:
1 argument(s) required, 0 supplied.

.. code-block::

   {
     "printf": {
 "LIBC_CONF_PRINTF_DISABLE_FLOAT": {
         "value": false,
 "doc": "Disable printing floating point values in printf and friends."
       },
       ...
     }
   }
ninja: build stopped: subcommand failed.

```

The code-blocks in this doc are old, so I might've broken something on my local machine causing this, but these are the only code blocks with no highlighting language.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJxsVN2O4jgTfRpzU5ooqfyRi1xAM0hIrelP37a0l8ixK4lnHJu1HUb99isbehp1b4SMDalzqk7VMfdeTYaoZ_We1YcNX8NsXX_U3Ehl1Gaw8q1_MVBUTT5UXVOJlkuOY1uXTZ43LaLY1tt6qAeZ82KoGT7BCfgCE4WgzARhJhit1vZ3PJFz1rFyx_IDy9_XJr9_0vFv7owyUwQKjnggCdx_CsyyjOFR6-vy7eLsTxIhHtUgGB6lFT5-0ZXhUVgzqulsL0FZ4zPnAyt3RcXK3fcICMoAQxRW0rdBW_GLIYJUjkRQV_pDVwB307qQCQy3nmEHjv5ZlSMZs8zBr5eLViSzx7KyDB5wy92nqgGAtfs_e4h5XJwyYWSIrNw9_MsQn0_7p_PTy4_j-X__P_14PZ4Pp792--fv5-Pzy-71S8T7wxCvXK90f2Hk2hPDpw9cacV7MOJBeT5ogpRG7NaoLU-bi1UmQILyUbNbosCNhNEpMtJnEeaRnLWHD6bbE7v2UG97eFDivjfK_OQxnWFVWoIP9nIhGX_w6yDssiRKrvQnsT_N0G19nemhBSnxMCsP0grgjsDq1D9v4QSLmubAsL0SDM7-IgPeLhTmWL01sLyBtoJrWLiYlSEQfPW38VY-ggxriKPuKSHHobdGvyV6uNP_VmEGY2FW06wjXYzX3EwrnyjbyL6UXdnxDfVFW5Tlti6x28w9L7qmaJGXuO3GMa-GphIS66ZoG8lHKjaqxxyrvCpazBHzLuOjxEbgtmmI12UnWJXTwpXOomEy66aN8n6lftsVZb3RfCDtk_8Rbx7CeBO4PvlrWCfPqlwrH_wHQFBBpzsjBdQHVu-T7-pD0u2r7BRV90mcRfkk3X_q4Der0_0cwsVHw-CR4XFSYV6HTNjlbvqv3k8FRdunmv4NAAD__8mNdro">