Switch .NET Core Images from the legacy location at Docker Hub Registry (microsoft/*) to a new location at Microsoft Container Registry (mcr.microsoft.com/*).
* overview
* whats new to end
* fix migration node
* split fundamentals, move to end
* glob & loc, get started
* security node name
* security section
* azure, client-side, host
* several more sections
* redistribute tutorials
* proofread fixes
* move how to download section
* index files delete and redirect
* fix errors
* reorder some nodes
* scott feedback, flatten main tutorials node
* fix missed feedback items + other issues
* unflatten tutorials node
* move 'how to download'
* more tutorials node tweaks
* standardize view sample links
* db --> DB
* fix build error
* remove link from a parent node
* streamline node names
* xref links
* typos
* typo
* typos and revert some xref links
* scott feedback
* scott feedback
* feedback
* change node name
* safe storage-->protect
Fixes#9219
@JunTaoLuo Dan calls out the implicit versioning "for 2.1 SDK or later;" however, we don't usually version the doc content by SDK release. We might need to say something for this update in the passage that I'm adding to the All topic (*aspnetcore/fundamentals/metapackage.md*) about which SDK version this applies to. I don't know if that's something that you would like to do or what version to call out.
I also remove the version from the samples. We also assume that devs are using the latest SDK with our samples.
Addresses #8579
I might be getting the hang of **_find and replace_** now. 😝
This doesn't touch a couple that ref 2.2.0. I'll tidy those up on https://github.com/aspnet/Docs/issues/8518 after 2.2 RTM.
Paragraph initially implied that you can use Docker with an ASP.NET Core app that targets .NET Framework. This is incorrect. You must target .NET Core for Docker support.