Update LRCX tutorial to use store

URL to the relevant tutorial

https://quantum.cloud.ibm.com/docs/en/tutorials/long-range-entanglement

Select all that apply

• new content request
• typo
• code bug
• out-of-date content
• broken link
• other

Describe the fix or the content request.

We've recently released a new instruction called store that allows you to store the output of a classical expression to a temporary variable and reuse that variable in subsequent expressions. This improves both usability and performance. More details about store can be found here.

Maika suggested the LRCX tutorial be updated to use this new store to make the parity calculation more efficient.

For new content requests - if the request is accepted, do you want to write the content?

I can help the team by providing enough information or by referring them to a specific Subject Matter Expert to write the material