Smart Contracts Tutorials Doc - Quality Check

[VEG-Ginna]

Tutorials Doc: https://docs.eosnetwork.com/docs/latest/smart-contracts/tutorials/

AC:

Check Smart Contracts Tutorials Doc for the following quality attributes:

Likely to change large portions:

• [ ] 2nd person voice
• [ ] comprehension (5th grade reading level)
• [ ] ability to machine translate
• [ ] grammar (keep it light)
• [ ] Make headers first-cap only

Likely only smaller changes

• [ ] spelling
• [ ] check for uniqueness

For things with guide-wide changes, make a separate PR (like title/heading fixes)