Add docs related to Starlight > Ethereum sync using BEEFY

[Agusrodri]

No description provided.

[github-actions]

WASM runtime size check:

Compared to target branch

dancebox runtime: 1412 KB (no changes) ✅

flashbox runtime: 824 KB (no changes) ✅

dancelight runtime: 1816 KB (+1816 KB) ⚠️

container chain template simple runtime: 1096 KB (-4212 KB) ✅

container chain template frontier runtime: 1396 KB (-5124 KB) ✅

[github-actions]

Coverage Report

(master)

@@                      Coverage Diff                      @@
##           master   agustin-add-beefy-diagram      +/-   ##
=============================================================
+ Coverage   64.97%                      65.29%   +0.32%     
  Files         296                         296              
- Lines       51742                       51468     -274     
=============================================================
- Hits        33615                       33605      -10     
- Misses      18127                       17863     -264     

Files Changed	Coverage
/client/node-common/src/service.rs	48.31% (+0.23%)	✅
/client/service-container-chain/src/service.rs	6.70% (-0.29%)	❗
/client/service-container-chain/src/spawner.rs	44.66% (+0.22%)	✅
/container-chains/nodes/frontier/src/cli.rs	73.33% (+6.66%)	✅
/container-chains/nodes/frontier/src/command.rs	25.56% (+6.83%)	✅
/container-chains/nodes/frontier/src/rpc/mod.rs	89.77% (+21.27%)	✅
/container-chains/nodes/simple/src/command.rs	18.81% (+0.25%)	✅
/node/src/service.rs	15.65% (+0.09%)	✅

Coverage generated Wed Oct 9 21:42:48 UTC 2024

[girazoki]

looks good to me @Agusrodri