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diff --git a/deps/npm/node_modules/validate-npm-package-license/README.md b/deps/npm/node_modules/validate-npm-package-license/README.md
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+++ b/deps/npm/node_modules/validate-npm-package-license/README.md
@@ -0,0 +1,61 @@
+validate-npm-package-license
+============================
+
+Give me a string and I'll tell you if it's a valid npm package license string.
+
+<!-- js var valid = require('./'); -->
+
+```js
+var noWarnings = {
+  validForNewPackages: true,
+  validForOldPackages: true
+};
+
+// SPDX license identifier for common open-source licenses
+valid('MIT'); // => noWarnings
+valid('BSD-2-Clause'); // => noWarnings
+valid('Apache-2.0'); // => noWarnings
+valid('ISC'); // => noWarnings
+
+// Simple SPDX license expression for dual licensing
+valid('(GPL-3.0 OR BSD-2-Clause)'); // => noWarnings
+
+// Refer to a non-standard license found in the package
+valid('SEE LICENSE IN LICENSE.txt'); // => noWarnings
+valid('SEE LICENSE IN license.md'); // => noWarnings
+
+// No license
+valid('UNLICENSED'); // => noWarnings
+valid('UNLICENCED'); // => noWarnings
+
+var warningsWithSuggestion = {
+  validForOldPackages: false,
+  validForNewPackages: false,
+  warnings: [
+    'license should be ' +
+    'a valid SPDX license expression without "LicenseRef", ' +
+    '"UNLICENSED", or ' +
+    '"SEE LICENSE IN <filename>"',
+    'license is similar to the valid expression "Apache-2.0"'
+  ]
+};
+
+// Almost a valid SPDX license identifier
+valid('Apache 2.0'); // => warningsWithSuggestion
+
+var warningAboutLicenseRef = {
+  validForOldPackages: false,
+  validForNewPackages: false,
+  warnings: [
+    'license should be ' +
+    'a valid SPDX license expression without "LicenseRef", ' +
+    '"UNLICENSED", or ' +
+    '"SEE LICENSE IN <filename>"',
+  ]
+};
+
+// LicenseRef-* identifiers are valid SPDX expressions,
+// but not valid in package.json
+valid('LicenseRef-Made-Up'); // => warningAboutLicenseRef
+valid('(MIT OR LicenseRef-Made-Up)'); // => warningAboutLicenseRef
+```