chore(package.json): update dependencies

package.json

@@ -16,11 +16,11 @@
     "gulp": "^3.9.1",
     "gulp-babel": "^6.1.2",
     "gulp-clone": "^1.0.0",
-    "gulp-postcss": "^6.3.0",
+    "gulp-postcss": "^7.0.0",
     "gulp-rename": "^1.2.2",
-    "gulp-sourcemaps": "2.4.1",
-    "gulp-typescript": "^3.1.5",
-    "react-component-info": "^1.0.0",
+    "gulp-sourcemaps": "^2.6.0",
+    "gulp-typescript": "^3.2.1",
+    "react-component-info": "^1.1.1",
     "react-docgen": "^2.15.0",
     "react-docgen-displayname-handler": "^1.0.0",
     "recast": "^0.12.5",

react-doc/create-resolver.js

@@ -121,7 +121,7 @@ function findExportedComponentDefinition(ast, recast, filePath) {
 
             if (moduleName !== 'react' && moduleName !== 'prop-types') {
                 // resolve path to file here, because this is the only place where we've got actual source path
-                // but skip `react` and `prop-types` modules, because dockgen winn not be able to detect types otherwise
+                // but skip `react` and `prop-types` modules, because docgen will not be able to detect types otherwise
                 node.value.source.value = resolve(
                     node.value.source.value,
                     { basedir: path.dirname(filePath), extensions: ['.js', '.jsx'] }