[DOCS] fix broken link in README to point to correct address (Issue 6817)

[0xthorazine]

Description

Link in README should point to https://docs.web3js.org/guides/advanced/tree_shaking/ but currently points to https://docs.web3js.org/guides/advanced/web3_tree_shaking_support_guide/

Type of change

Fixed link to correct address

[SantiagoDevRel]

Issue #6817

[codecov[bot]]

Codecov Report

Merging #6818 (c5f0319) into 4.x (4358140) will increase coverage by 4.65%. Report is 180 commits behind head on 4.x. The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##              4.x    #6818      +/-   ##
==========================================
+ Coverage   87.37%   92.02%   +4.65%     
==========================================
  Files         197      214      +17     
  Lines        7548     8179     +631     
  Branches     2059     2201     +142     
==========================================
+ Hits         6595     7527     +932     
+ Misses        953      652     -301     

Flag	Coverage Δ
UnitTests	92.02% <ø> (+4.65%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
web3	∅ <ø> (∅)
web3-core	∅ <ø> (∅)
web3-errors	∅ <ø> (∅)
web3-eth	∅ <ø> (∅)
web3-eth-abi	∅ <ø> (∅)
web3-eth-accounts	∅ <ø> (∅)
web3-eth-contract	∅ <ø> (∅)
web3-eth-ens	∅ <ø> (∅)
web3-eth-iban	∅ <ø> (∅)
web3-eth-personal	∅ <ø> (∅)
web3-net	∅ <ø> (∅)
web3-providers-http	∅ <ø> (∅)
web3-providers-ipc	∅ <ø> (∅)
web3-providers-ws	∅ <ø> (∅)
web3-rpc-methods	∅ <ø> (∅)
web3-utils	∅ <ø> (∅)
web3-validator	∅ <ø> (∅)