chore: fixing directories and missing devdep

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: passed
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: Om-A-osc

docs/migration-guides/tfjs/package.json

@@ -16,7 +16,8 @@
   ],
   "main": "./package.json",
   "directories": {
-    "benchmark": "./benchmark"
+    "benchmark": "./benchmark",
+    "data": "./data"
   },
   "scripts": {
     "bench": "make benchmark"
@@ -33,6 +34,7 @@
     "@tensorflow/tfjs": "^4.20.0",
     "@tensorflow/tfjs-node": "^4.20.0"
   },
+  "devDependencies": {},
   "engines": {},
   "os": [
     "aix",