diff --git a/README.md b/README.md
index f3e16e4..ae76b92 100644
--- a/README.md
+++ b/README.md
@@ -183,22 +183,6 @@ All that is saved in image, so that is why image is so heavy.
 
 ### Commands and keys
 
-#### root perms when editing
-
-```bash
-# Re-open a current file with sudo
-:SudaRead
-# Open /etc/sudoers with sudo
-:SudaRead /etc/sudoers
-```
-
-```bash
-# Forcedly save a current file with sudo
-:SudaWrite
-# Write contents to /etc/profile
-:SudaWrite /etc/profile
-```
-
 #### General
 
 |keys|action|
@@ -335,10 +319,11 @@ GitSings provides some commands for displaying git stuff:
 |\<leader\>wr 	|remove workspace folder|
 |\<leader\>wl |	list workspace folders |
 
-#### LSP diagnostics (trouble.nvim)
+#### LSP diagnostics (custom and trouble.nvim)
 
 |||
 |----|----|
+|\<leader\>vt| 	switch display of virtual text|
 |\<leader\>xx| 	Open diagnostics window|
 |\<leader\>xw	|workspace diagnostics|
 |\<leader\>xd	|document diagnostics|
diff --git a/lua/general.lua b/lua/general.lua
index 92c3d2e..2367332 100644
--- a/lua/general.lua
+++ b/lua/general.lua
@@ -19,6 +19,16 @@ end
 -- open nvim tree on start
 vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })
 
+-- disabling virtual text
+VIRTUAL_TEXT_ENABLED = true
+function switch_virtual_text()
+    VIRTUAL_TEXT_ENABLED = not VIRTUAL_TEXT_ENABLED
+    vim.diagnostic.config({
+      virtual_text = VIRTUAL_TEXT_ENABLED,
+    })
+end
+map("n", "<leader>vt", ":lua switch_virtual_text()<CR>")
+
 -- tab lines in normal and visual mode
 map("n", "<Tab>", ">>")
 map("n", "<S-Tab>", "<<")