Add spell check and update Lighthouse book (#6627)

* spellcheck config

* Merge remote-tracking branch 'origin/unstable' into spellcheck

* spellcheck update

* update spellcheck

* spell check passes

* Remove ignored and add other md files

* Remove some words in wordlist

* CI

* test spell check CI

* correct spell check

* Merge branch 'unstable' into spellcheck

* minor fix

* Merge branch 'spellcheck' of https://github.com/chong-he/lighthouse into spellcheck

* Update book

* mdlint

* delete previous_epoch_active_gwei

* Merge branch 'unstable' into spellcheck

* Tweak "container runtime" wording

* Try `BeaconState`s

wordlist.txt

@@ -0,0 +1,235 @@
+APIs
+ARMv
+AUR
+Backends
+Backfilling
+Beaconcha
+Besu
+Broadwell
+BIP
+BLS
+BN
+BNs
+BTC
+BTEC
+Casper
+CentOS
+Chiado
+CMake
+CoinCashew
+Consensys
+CORS
+CPUs
+DBs
+DES
+DHT
+DNS
+Dockerhub
+DoS
+EIP
+ENR
+Erigon
+Esat's
+ETH
+EthDocker
+Ethereum
+Ethstaker
+Exercism
+Extractable
+FFG
+Geth
+Gitcoin
+Gnosis
+Goerli
+Grafana
+Holesky
+Homebrew
+Infura
+IPs
+IPv
+JSON
+KeyManager
+Kurtosis
+LMDB
+LLVM
+LRU
+LTO
+Mainnet
+MDBX
+Merkle
+MEV
+MSRV
+NAT's
+Nethermind
+NodeJS
+NullLogger
+PathBuf
+PowerShell
+PPA
+Pre
+Proto
+PRs
+Prysm
+QUIC
+RasPi
+README
+RESTful
+Reth
+RHEL
+Ropsten
+RPC
+Ryzen
+Sepolia
+Somer
+SSD
+SSL
+SSZ
+Styleguide
+TCP
+Teku
+TLS
+TODOs
+UDP
+UI
+UPnP
+USD
+UX
+Validator
+VC
+VCs
+VPN
+Withdrawable
+WSL
+YAML
+aarch
+anonymize
+api
+attester
+backend
+backends
+backfill
+backfilling
+beaconcha
+bitfield
+blockchain
+bn
+cli
+clippy
+config
+cpu
+cryptocurrencies
+cryptographic
+danksharding
+datadir
+datadirs
+de
+decrypt
+decrypted
+dest
+dir
+disincentivise
+doppelgänger
+dropdown
+else's
+env
+eth
+ethdo
+ethereum
+ethstaker
+filesystem
+frontend
+gapped
+github
+graffitis
+gwei
+hdiffs
+homebrew
+hostname
+html
+http
+https
+hDiff
+implementers
+interoperable
+io
+iowait
+jemalloc
+json
+jwt
+kb
+keymanager
+keypair
+keypairs
+keystore
+keystores
+linter
+linux
+localhost
+lossy
+macOS
+mainnet
+makefile
+mdBook
+mev
+misconfiguration
+mkcert
+namespace
+natively
+nd
+ness
+nginx
+nitty
+oom
+orging
+orgs
+os
+paul
+pem
+performant
+pid
+pre
+pubkey
+pubkeys
+rc
+reimport
+resync
+roadmap
+runtime
+rustfmt
+rustup
+schemas
+sigmaprime
+sigp
+slashable
+slashings
+spec'd
+src
+stakers
+subnet
+subnets
+systemd
+testnet
+testnets
+th
+toml
+topologies
+tradeoffs
+transactional
+tweakers
+ui
+unadvanced
+unaggregated
+unencrypted
+unfinalized
+untrusted
+uptimes
+url
+validator
+validators
+validator's
+vc
+virt
+webapp
+withdrawable
+yaml
+yml