some more remaps

lua/jeff/remap.lua

@@ -1,2 +1,10 @@
 vim.g.mapleader = " "
 vim.keymap.set("n", "<leader>pv", vim.cmd.Ex)
+
+-- move current line up/down in visual mode
+vim.keymap.set("v", "J", ":m '>+1<CR>gv=gv")
+vim.keymap.set("v", "K", ":m '>-2<CR>gv=gv")
+
+-- keep cursor centered when half page jumping
+vim.keymap.set("n", "<C-d>", "<C-d>zz")
+vim.keymap.set("n", "<C-u>", "<C-u>zz")