[Format] Clarifying Sort Order Requirements for Floating Points and Logical Types

A new proposal for adding a logical annotation to support Float16 values [1] reopened the discussion on specifying how parquet should deal with edge cases for floating point types (PARQUET-1222 [2]). To try to resolve this the consensus from the JIRA is to not try to specify an ordering when writ

[jira] [Commented] (PARQUET-1222) Specify a well-defined sorting order for float and double types

[ https://issues.apache.org/jira/browse/PARQUET-1222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17629251#comment-17629251 ] ASF GitHub Bot commented on PARQUET-1222: - emkornfield opened a new pull reques

[GitHub] [parquet-format] emkornfield opened a new pull request, #185: PARQUET-1222: [Format] Add deails about sort order to README.md

emkornfield opened a new pull request, #185: URL: https://github.com/apache/parquet-format/pull/185 Make sure you have checked _all_ steps below. ### Jira - [x ] My PR addresses the following [Parquet Jira](https://issues.apache.org/jira/browse/PARQUET/) issues and references