Add obsidian.nvim plugin, add minor changes related to home-dir cleanup

src_files/.config/nvim/lua/auto_commands.lua

@@ -0,0 +1,15 @@
+local autoCmdGroup = vim.api.nvim_create_augroup("autoCmdGroup", { clear = true })
+local autoCmd = vim.api.nvim_create_autocmd
+
+autoCmd({"BufWritePre"}, {
+    group = autoCmdGroup,
+    pattern = "*",
+    command = [[%s/\s\+$//e]],
+})
+
+autoCmd({"BufReadPre"}, {
+    group = autoCmdGroup,
+    pattern = os.getenv("DIR_NOTES") .. "/**/*.md",
+    command = [[lua vim.opt_local.conceallevel = 1]],
+})
+