add clangd nvim lsp init

nvim/init.vim

@@ -214,6 +214,10 @@ require('lspconfig')['tsserver'].setup{
     on_attach = on_attach,
     capabilities = capabilities,
 }
+require('lspconfig')['clangd'].setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
 EOF
 
 lua <<EOF