doc: add info about timeoutlen (#691)

Add separate comment for `timeoutlen` option
`timeoutlen` option was under unrelated comment with `updatetime` option.

1 files changed, 3 insertions, 0 deletions

diff --git a/init.lua b/init.lua
index 04cc6b7..964ff82 100644
--- a/init.lua
+++ b/init.lua
@@ -130,6 +130,9 @@ vim.opt.signcolumn = 'yes'
 
 -- Decrease update time
 vim.opt.updatetime = 250
+
+-- Decrease mapped sequence wait time
+-- Displays which-key popup sooner
 vim.opt.timeoutlen = 300
 
 -- Configure how new splits should be opened