RFR: 8310838: Correct range notations in MethodTypeDesc specification

[Mandy Chung]

On Sat, 24 Jun 2023 01:07:48 GMT, Chen Liang <liach at openjdk.org> wrote:

> https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/lang/constant/MethodTypeDesc.html
> 
> These 3 typos are discovered while browsing the online documentation. It probably doesn't need a CSR for it doesn't change the specification at all.

This is just formatting fix.  No CSR needed.

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Marked as reviewed by mchung (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14635#pullrequestreview-1499359946