doom refresh -> doom sync

refresh isn't going anywhere, but sync will be the canonical command
here on out, because it is more appropriate for kind of work it will be
doing in the future.

modules/editor/evil/README.org

@@ -137,7 +137,7 @@ And these are text objects added by this module:
 You must do two things to remove Evil:
 
 1. Remove =:editor evil= from =~/.doom.d/init.el=,
-2. Run ~doom refresh~ to clean up lingering dependencies and refresh your
+2. Run ~doom sync~ to clean up lingering dependencies and regenerate your
    autoloads files.
 3. [OPTIONAL] You may want to assign new values to ~doom-leader-alt-key~ and
    ~doom-localleader-alt-key~. These are bound to =C-c= and =C-c l= by default.

modules/lang/ocaml/README.org

@@ -69,8 +69,8 @@ opam install merlin utop ocp-indent dune ocamlformat
 + If =:emacs imenu= is enabled then top level symbols (modules, type, functions,
   etc.) can be looked up using =SPC / i=
 
-Run =bin/doom refresh= to install all packages and =make doctor= to diagnose
-missing tools.
+Run =doom sync= to install all packages and =doom doctor= to diagnose missing
+tools.
 
 * Appendix
 ** Commands