Add .NET APM agent 1.8 branch as current

[russcam]

This commit updates the configuration for the APM
.NET agent to include the 1.8 branch, and set it as
the current branch.

[bmorelli25]

conf.yaml references the branch in the apm-agent-dotnet repo that we build the docs from. As we build from 1.x, there shouldn't be any updates required to this file on minor releases. Are there docs that you're not seeing live, that you expect to be live?

[bmorelli25]

Alright, @russcam just made my day on zoom–The .NET agent is changing their branching strategy to match that of the stack 🎉 . Versioning will still be unique, but mirroring the stack's branching strategy will allow for easier cross-linking of docs, docs/ci-checked releases, and better visibility into documentation/product changes over minor releases. I'll push some changes to this PR tomorrow.

[bmorelli25]

87c273c Merges in the 7.12 branch update.

b61c0fc Updates documentation links from Stack versioned books (v6.5-v7.x) to point to the 1.8 version of the .NET reference. This is necessary because 1.x is changing from the current, released version of the documentation to the future, unreleased version. Future minor release will only need to update through the current stack version. For example, if 1.9 released today, a change would only need to be made to stack/7.x.asciidoc, stack/7.12.asciidoc, and stack/7.11.asciidoc.

[bmorelli25]

😄

[bmorelli25]

• master
• 1.x
• 1.8 (current)

[gtback]

LGTM!