Changed . token to _dot

This change allows the dotfiles to work with chezmoi (e.g: on windows)
and improves grepability with neovim/telescope

dot_config/nushell/nu_scripts/sourced/nu_101/broken.nu

@@ -0,0 +1,46 @@
+### These examples are here to show the user
+### How the parser works by showing examples that will not parse
+### The beginning nushell script writer / user may get confused
+### as to why their script is not working
+###
+### If you uncomment any of the defs below these are
+### the error messages you will see
+#
+#
+#
+### Examples p1 - p3 below elucidate the following idea:
+### That a brace has to be on the same line as the def
+###
+###
+### Error: nu::parser::missing_positional
+### The error message is: "Missing required positional argument"
+### missing block
+###
+### help: Usage: def <def_name> <params> <block>
+###
+#
+### https://github.com/nushell/nushell/issues/2972
+#
+### All of these examples will not parse.
+
+### def p1 [arg]
+### { echo $arg }
+
+### def p2 [arg]
+### {
+### echo $arg }
+
+### def p3 [arg]
+### {
+### echo $arg
+### }
+
+### This breaks because you need a space between
+### between foo and the left bracket
+### def foo[] {
+###  "bar"
+### }
+### This works
+### def foo [] {
+### "bar"
+### }