add neovim config

.config/nvim/lua/core/options.lua

@@ -0,0 +1,38 @@
+local opt = vim.opt
+
+-- line numbers
+opt.number = true
+opt.relativenumber = true
+
+-- tabs & indents
+opt.tabstop = 3
+opt.shiftwidth = 3
+opt.expandtab = true
+opt.autoindent = true
+
+-- disable line wrapping
+opt.wrap = false
+
+-- search
+opt.ignorecase = true
+opt.smartcase = true
+
+-- cursor line
+opt.cursorline = true
+
+-- appearance
+opt.termguicolors = false
+opt.background = "dark"
+opt.signcolumn = "yes"
+
+-- backspace
+opt.backspace = "indent,eol,start"
+
+-- clipboard
+opt.clipboard:append("unnamedplus") -- use system clipboard as the default register
+
+-- split windows
+opt.splitright = true
+opt.splitbelow = true
+
+opt.iskeyword:append("-") -- consider string-string as a whole word