Update lsp config

lua/config/lspconfig.lua

@@ -31,7 +31,7 @@ local on_attach = function(client, bufrn)
 end
 
 -- Launch language servers
-local servers = { 'pylsp', 'gopls', 'rust_analyzer', 'tsserver', 'elixirls', 'dartls', 'denols', 'clangd' }
+local servers = { 'pyright', 'pylsp', 'gopls', 'rust_analyzer', 'tsserver', 'elixirls', 'dartls', 'denols', 'clangd', 'zls' }
 for _, lsp in ipairs(servers) do
   nvim_lsp[lsp].setup {
     on_attach = on_attach,
@@ -41,5 +41,20 @@ for _, lsp in ipairs(servers) do
   }
 end
 
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities.textDocument.completion.completionItem.snippetSupport = true
+
+require'lspconfig'.jsonls.setup {
+  cmd = { "vscode-json-languageserver", "--stdio" },
+  capabilities = capabilities,
+  commands = {
+  Format = {
+      function()
+        vim.lsp.buf.range_formatting({},{0,0},{vim.fn.line("$"),0})
+      end
+    },
+  },
+}
+
 -- Format on save
 vim.cmd [[autocmd BufWritePre <buffer> lua vim.lsp.buf.formatting_sync()]]