evenly resize split windows (#698)

* evenly resize split windows

* fixed indention

lua/default-config.lua

@@ -288,4 +288,8 @@ require("lv-utils").define_augroups {
   _buffer_bindings = {
     { "FileType", "floaterm", "nnoremap <silent> <buffer> q :q<CR>" },
   },
+  _auto_resize = {
+    -- will cause split windows to be resized evenly if main window is resized
+    {'VimResized ', '*', 'wincmd ='},
+  },
 }