Updated the files.

my-app/node_modules/postcss-loader/dist/options.json

@@ -0,0 +1,58 @@
+{
+  "title": "PostCSS Loader options",
+  "type": "object",
+  "properties": {
+    "postcssOptions": {
+      "description": "Options to pass through to `Postcss`.",
+      "link": "https://github.com/webpack-contrib/postcss-loader#postcssOptions",
+      "anyOf": [
+        {
+          "type": "object",
+          "additionalProperties": true,
+          "properties": {
+            "config": {
+              "description": "Allows to specify PostCSS config path.",
+              "link": "https://github.com/webpack-contrib/postcss-loader#config",
+              "anyOf": [
+                {
+                  "description": "Allows to specify the path to the configuration file",
+                  "type": "string"
+                },
+                {
+                  "description": "Enables/Disables autoloading config",
+                  "type": "boolean"
+                }
+              ]
+            }
+          }
+        },
+        {
+          "instanceof": "Function"
+        }
+      ]
+    },
+    "execute": {
+      "description": "Enables/Disables PostCSS parser support in 'CSS-in-JS'.",
+      "link": "https://github.com/webpack-contrib/postcss-loader#execute",
+      "type": "boolean"
+    },
+    "sourceMap": {
+      "description": "Enables/Disables generation of source maps.",
+      "link": "https://github.com/webpack-contrib/postcss-loader#sourcemap",
+      "type": "boolean"
+    },
+    "implementation": {
+      "description": "The implementation of postcss to use, instead of the locally installed version",
+      "link": "https://github.com/webpack-contrib/postcss-loader#implementation",
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "instanceof": "Function"
+        }
+      ]
+    }
+  },
+  "additionalProperties": false
+}