Merge 'upstream': 3 misc commits

- Fix which-key delay settings
- chore: add pre-issue requirements
- Fix README.md grammar and  typos

lua/kickstart/plugins/which-key.lua

@@ -17,6 +17,9 @@ return {
     'folke/which-key.nvim',
     event = 'VimEnter', -- Sets the loading event to 'VimEnter'
     opts = {
+      -- delay between pressing a key and opening which-key (milliseconds)
+      -- this setting is independent of vim.opt.timeoutlen
+      delay = 0,
       icons = {
         -- set icon mappings to true if you have a Nerd Font
         mappings = vim.g.have_nerd_font,