Import vim indent settings

init.lua

@@ -1 +1,2 @@
 require("core.mappings")
+require("core.settings")

lua/core/settings.lua

@@ -0,0 +1,6 @@
+-- how many spaces large a TAB character is
+vim.o.tabstop=2
+-- when indenting with '>', use space width
+vim.o.shiftwidth=2
+-- insert spaces instead of TAB character
+vim.o.expandtab=true