docs: update README with recommended component configs

Author: cseickel

README.md

@@ -57,6 +57,25 @@ use {
         popup_border_style = "rounded",
         enable_git_status = true,
         enable_diagnostics = true,
+        default_component_configs = {
+          indent = {
+            indent_size = 2,
+            padding = 1, -- extra padding on left hand side
+            with_markers = true,
+            indent_marker = "│",
+            last_indent_marker = "└",
+            highlight = "NeoTreeIndentMarker",
+          },
+          icon = {
+            folder_closed = "",
+            folder_open = "",
+            trailing_slash = false,
+            default_icon = "*",
+          },
+          git_status = {
+            highlight = "NeoTreeDimText", -- if you remove this the status will be colorful
+          },
+        },
         filesystem = {
           filters = { --These filters are applied to both browsing and searching
             show_hidden = false,