update readme [skip ci]

packages/babel-types/README.md

@@ -865,6 +865,18 @@ Aliases: `Statement`, `Conditional`
  - `consequent`: `Statement` (required)
  - `alternate`: `Statement` (default: `null`)
 
+---
+
+### import
+```javascript
+t.import()
+```
+
+See also `t.isImport(node, opts)` and `t.assertImport(node, opts)`.
+
+Aliases: `Expression`
+
+
 ---
 
 ### importDeclaration