Update RDD with Spacemacs video

[practicalli-johnny]

Some tooling has changed since recording the REPL Driven Development video with Spacemacs.

Revisit the script and adapt for changes. Re-record the video

Changes

• Aliases are now at the end of the Clojure command line when starting a REPL from CIDER
• Creating a project should use a tool, -T, option - using clojure -T:project/new to create a default project and this should use deps-new (rather than clj-new)

Additional aspects

• Using LSP features and UI
  • LSP docs instead of Cider
  • LSP snippets - practicalli snippets - contribute as many as possible to the LSP project