improve documentation

Fix multiple typos in the internal documentation

Improve visual aspect and redaction

.cargo/config

@@ -3,5 +3,6 @@ cucumber = "test -p duniter-end2end-tests --test cucumber_tests --"
 sanity-gdev = "test -p duniter-live-tests --test sanity_gdev -- --nocapture"
 tu = "test --workspace --exclude duniter-end2end-tests --exclude duniter-live-tests"
 tb = "test --features runtime-benchmarks -p"
+rbp = "run --release --features runtime-benchmarks -- benchmark pallet --chain=dev --steps=50 --repeat=20 --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --output=. --pallet"
 xtask = "run --package xtask --"