Update suggested neovim config

README.md

@@ -96,16 +96,25 @@ Markdown Oxide's features are implemented in the form of a language server aimin
         Modify your lsp `on_attach` function.
 
         ```lua
+        local function check_codelens_support()
+        local clients = vim.lsp.get_active_clients({ bufnr = 0 })
+        for _, c in ipairs(clients) do
+          if c.server_capabilities.codeLensProvider then
+            return true
+          end
+        end
+        return false
+        end
+
         -- refresh codelens on TextChanged and InsertLeave as well
-        vim.api.nvim_create_autocmd({ 'TextChanged', 'InsertLeave', 'CursorHold', 'LspAttach' }, {
-            buffer = bufnr,
-            callback = function ()
-              if vim.lsp.codelens.get(bufnr) then -- refresh only if there are servers supporting codelens
-                vim.lsp.codelens.refresh()
-              end
-            end
+        vim.api.nvim_create_autocmd({ 'TextChanged', 'InsertLeave', 'CursorHold', 'LspAttach', 'BufEnter' }, {
+        buffer = bufnr,
+        callback = function ()
+          if check_codelens_support() then
+            vim.lsp.codelens.refresh({bufnr = 0})
+          end
+        end
         })
-        
         -- trigger codelens refresh
         vim.api.nvim_exec_autocmds('User', { pattern = 'LspAttached' })
         ```