chore(examples): writing custom data to cell

[homura]

Description

This PR provided an example to demonstrate how to write custom data into a cell to simulate the inscription

Type of change

• Example

[vercel]

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Name	Status	Preview	Updated (UTC)
lumos-website	✅ Ready (Inspect)	Visit Preview	Dec 28, 2023 0:08am

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (204184c) 83.84% compared to head (7793de2) 87.18%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #593      +/-   ##
===========================================
+ Coverage    83.84%   87.18%   +3.34%     
===========================================
  Files          116      116              
  Lines        23583    23583              
  Branches      2223     2415     +192     
===========================================
+ Hits         19773    20561     +788     
+ Misses        3770     2984     -786     
+ Partials        40       38       -2     

see 10 files with indirect coverage changes

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