I just noticed that doc/building.{md,html} describes minimum toolchain versions,
so also needs to be updated. Here’s the update, matching what’s now in the JEP:full: https://cr.openjdk.java.net/~kbarrett/8246032/open.05/ incr: https://cr.openjdk.java.net/~kbarrett/8246032/open.05.inc/ I also deleted a discussion of a problem one might run into when building with Visual Studio 2010, since that version is no longer relevant.
