OrderedDictionary page says nothing (!) about ordering

### Type of issue

Missing information

### Description

This page say nothing about, well, ordering. Which way items are ordered? Does it preserve the order of insertion? Or something else?

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.collections.specialized.ordereddictionary?view=net-10.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Collections.Specialized/OrderedDictionary.xml

### Document Version Independent Id

9bb44bbc-fb69-e341-a6d0-963496847058

### Platform Id

3f40af6f-4abf-0670-1671-45f3fad22163

### Article author

@dotnet-bot