docs: add B20 concept docs - #1773

Checking for broken links...

AGENTS.md
  - static/llms.txt

agents/skills/SKILL.md
  - references/install.md
  - references/tone.md
  - references/approval-mode.md
  - references/batch-calls.md
  - references/custom-plugins.md
  - references/install.md
  - references/tone.md
  - plugins/aerodrome.md
  - plugins/avantis.md
  - plugins/balancer.md
  - plugins/bankr.md
  - plugins/bitrefill.md
  - plugins/brickken.md
  - plugins/clawnch.md
  - plugins/flaunch.md
  - plugins/gmgn.md
  - plugins/hydrex.md
  - plugins/kyberswap.md
  - plugins/moonwell.md
  - plugins/morpho.md
  - plugins/o1-exchange.md
  - plugins/opensea.md
  - plugins/printr.md
  - plugins/uniswap.md
  - plugins/venice.md
  - plugins/virtuals.md
  - plugins/yo.md
  - plugins/avantis.md
  - plugins/morpho.md
  - references/custom-plugins.md

agents/skills/plugins/o1-exchange.md
  - approvalUrl

agents/skills/references/approval-mode.md
  - URL
  - URL

agents/skills/references/batch-calls.md
  - approval-mode.md

agents/skills/references/custom-plugins.md
  - approval-mode.md
  - batch-calls.md

agents/skills/references/install.md
  - approval-mode.md
  - custom-plugins.md

agents/skills/references/plugin-spec.md
  - custom-plugins.md
  - batch-calls.md
  - approval-mode.md
  - approval-mode.md

Found 43 broken links in 12938.53ms