fixed typo

lua/core/plugins/nvim_cmp.lua

@@ -16,7 +16,7 @@ return {
     config = function()
 	local cmp = require("cmp")
 	local luasnip = require("luasnip")
-	local lspking = require("lspkind")
+	local lspkind = require("lspkind")
 
 	cmp.setup({
 	    snippet = {
@@ -45,7 +45,7 @@ return {
 	    ),
 
 	    formatting = {
-		format = lspking.cmp_format({
+		format = lspkind.cmp_format({
 		    mode = "symbol_text",
 		    maxwidth = 50,
 		    ellipsis_char = "..."