reorganinze week6 code examples

...ples/Week6/ReactExamples/conditional-rendering/.gitignore

...mples/Week6/ReactExamples/conditional-rendering/README.md

...ek6/ReactExamples/conditional-rendering/package-lock.json

...es/Week6/ReactExamples/conditional-rendering/package.json

...k6/ReactExamples/conditional-rendering/public/favicon.ico

...ek6/ReactExamples/conditional-rendering/public/index.html

.../ReactExamples/conditional-rendering/public/manifest.json

...les/Week6/ReactExamples/conditional-rendering/src/App.css

...Week6/ReactExamples/conditional-rendering/src/App.test.js

...es/Week6/ReactExamples/conditional-rendering/src/Child.js

...s/Week6/ReactExamples/conditional-rendering/src/Parent.js

...s/Week6/ReactExamples/conditional-rendering/src/index.css

...es/Week6/ReactExamples/conditional-rendering/src/index.js

...es/Week6/ReactExamples/conditional-rendering/src/logo.svg

.../ReactExamples/conditional-rendering/src/serviceWorker.js

lectureCodeExamples/Week6/ReactExamples/counter/.gitignore

lectureCodeExamples/Week6/ReactExamples/counter/README.md

...odeExamples/Week6/ReactExamples/counter/package-lock.json

lectureCodeExamples/Week6/ReactExamples/counter/package.json

...deExamples/Week6/ReactExamples/counter/public/favicon.ico