e2store: examples directory and README update

[ScottyPoi]

• Creates examples directory.
• Adds examples scripts
  • era
  • era1
  • e2hs
• Updates README with code section links to examples
  • should auto populate README with npm run examples:build
• Fixes npm run examples scripts in package.json

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.51%. Comparing base (589a54a) to head (89d9e26).
Report is 1 commits behind head on master.

Additional details and impacted files

Flag	Coverage Δ
block	84.33% <ø> (ø)
blockchain	89.32% <ø> (ø)
client	67.99% <ø> (ø)
common	97.51% <ø> (ø)
devp2p	86.78% <ø> (+0.07%)	⬆️
evm	73.11% <ø> (ø)
mpt	89.74% <ø> (+0.05%)	⬆️
statemanager	69.06% <ø> (ø)
static	99.11% <ø> (ø)
tx	89.89% <ø> (ø)
util	89.19% <ø> (ø)
vm	55.50% <ø> (ø)

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[holgerd77]

Ah, we had this discussion on some of Amir's PRs already, so this by-line-inclusion tends to be really error-prone, since one is often not noticing if lines are shifting and this tends to get a constant re-hunting for correct documentation.

Then it's better to just keep static, will re-put the plain code here and push, branch needs an update anyhow.

[holgerd77]

Update: ah, ok, I see the problem that the examples - if self-contained seem to get really long, also this makes use of this inclusion pretty heavily, a bit of a pity to reverse.

Then I won't do, but we should keep in mind a bit and be really careful here.

[holgerd77]

Have pushed an update building the examples and do some small adjustments. Will approve/merge when CI passes. Thanks for the PR! 🙂

[holgerd77]

LGTM