hover documentation for function in insert mode

lua/kickstart/plugins/lspconfig.lua

@@ -107,6 +107,8 @@ return {
           -- Opens a popup that displays documentation about the word under your cursor
           --  See `:help K` for why this keymap.
           map('K', vim.lsp.buf.hover, 'Hover Documentation')
+          -- Similar as above, shows hover documentation for current function
+          vim.keymap.set('i', '<C-k>', vim.lsp.buf.signature_help, { buffer = event.buf, desc = 'LSP: ' .. 'Hover Signature Information' })
 
           -- WARN: This is not Goto Definition, this is Goto Declaration.
           --  For example, in C this would take you to the header.