chore: migrate error messages on descriptions

Author: anshumanv

test/__snapshots__/Validation.test.js.snap.webpack4

@@ -4,6 +4,7 @@ exports[`Validation validation should fail validation for invalid \`hot\` config
 "Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
  - configuration.hot should be one of these:
    boolean | \\"only\\"
+   -> https://webpack.js.org/configuration/dev-server/#devserverhot
    Details:
     * configuration.hot should be a boolean.
     * configuration.hot should be \\"only\\"."
@@ -31,6 +32,7 @@ exports[`Validation validation should fail validation for invalid \`static\` con
 "Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
  - configuration.static should be one of these:
    boolean | non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? } | [non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? }, ...] (should not have fewer than 1 item)
+   -> https://webpack.js.org/configuration/dev-server/#devserverstatic
    Details:
     * configuration.static[0] should be one of these:
       non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? }