Update README.adoc to warn about non-standard defaults on homebrew cask recipe #1390
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The homebrew cask recipe installs the maven demon version 2.x by default, which expects maven 4 to be installed, is unstable and breaks most ci/cd systems. This behavior is non standard and goes against the homebrew cask recommendations (see https://docs.brew.sh/Acceptable-Casks#beta-unstable-development-nightly-or-legacy and https://docs.brew.sh/Versions#acceptable-versioned-formulae). As it is expected that users will install the mvnd recipe right after mvn, this will likely cause them to get unexpected errors.
This updates the readme to warn future users more explicitly about the non-standard behavior and that they will likely need to use the
mvnd@1
alternative.