docs: cleanup #3792

Author: justinmk

lsp/angularls.lua

@@ -3,17 +3,12 @@
 --- https://github.com/angular/vscode-ng-language-service
 --- `angular-language-server` can be installed via npm `npm install -g @angular/language-server`.
 ---
---- Note, that if you override the default `cmd`, you must also update `on_new_config` to set `new_config.cmd` during startup.
----
 --- ```lua
 --- local project_library_path = "/path/to/project/lib"
 --- local cmd = {"ngserver", "--stdio", "--tsProbeLocations", project_library_path , "--ngProbeLocations", project_library_path}
 ---
 --- vim.lsp.config('angularls', {
 ---   cmd = cmd,
----   on_new_config = function(new_config,new_root_dir)
----     new_config.cmd = cmd
----   end,
 --- })
 --- ```
 

lsp/volar.lua

@@ -64,10 +64,10 @@
 ---       tsdk = '/path/to/node_modules/typescript/lib'
 ---     }
 ---   },
----   on_new_config = function(new_config, new_root_dir)
+---   before_init = function(params, config)
 ---     local lib_path = vim.fs.find('node_modules/typescript/lib', { path = new_root_dir, upward = true })[1]
 ---     if lib_path then
----       new_config.init_options.typescript.tsdk = lib_path
+---       config.init_options.typescript.tsdk = lib_path
 ---     end
 ---   end
 --- })