Update Instructions.tsx

[ThugPigeon653]

Added a button to minimize/expand the 'instructions' filed.

Pull Request template

Please, fill in the following checklist when you submit a PR. The items you have done should be updated with a check mark (that is, [x] instead of [ ]).

• General
  • [x ] Review the CONTRIBUTING.md file for detailed contributing guidelines before sending a PR.
  • [ x] Your contribution is made under the project's copyright license.
  • [ x] Make sure that your PR is not a duplicate.
  • [ x] You have done your changes in a separate branch.
  • [ x] You have a descriptive commit message with a short title (first line).
  • [ ] You have only one commit. If not, either squash them into one commit or contribute your change as a sequence of smaller Pull Requests.
• Basic sanity checks
  • [ ] You have run runchecks.sh and it said "Everything is OK".
• Testing and Documentation
  • [ ] Your changes include unit tests (if they are code changes).
  • [ ] If your change relates to the behaviour of the simulator, please include comments explaining which part of the reference documentation describes the thing you're changing.
• If your change is a bugfix and it fully fixes an issue:
  • [ ] Put closes #XXXX in your pull request description to auto-close the issue that your PR fixes.

If any of the checklist items don't apply, please leave them un-checked.

PLEASE KEEP THE ABOVE IN YOUR PULL REQUEST.

[jamesyoungman]

Thanks! I am sorry, I didn't spot this until now. Thank you for your contribution!