use directories for structure

node_modules/acorn-numeric-separator/CHANGELOG.md

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+## 0.3.2 (2020-05-06)
+
+* Also remove numeric separators in Literal's `bigint` property
+
+## 0.3.1 (2020-05-03)
+
+* Make compatible with acorn's bigint support
+* Mark as compatible with acorn@7
+
+## 0.3.0 (2019-04-04)
+
+* Make compatible with acorn-bigint
+
+## 0.2.0 (2018-09-14)
+
+* Update to new acorn 6 interface
+* Change license to MIT
+
+## 0.1.1 (2018-01-16)
+
+* Don't bail on empty integers as in `1.`
+
+## 0.1.0 (2017-12-19)
+
+Initial release