docs: link config and bitlesson from documentation

Author: zenus

README.md

@@ -67,28 +67,8 @@ Requires [codex CLI](https://github.com/openai/codex) for review. See the full [
 - [Install for Claude Code](docs/install-for-claude.md) -- Full installation instructions
 - [Install for Codex](docs/install-for-codex.md) -- Codex skill runtime setup
 - [Install for Kimi](docs/install-for-kimi.md) -- Kimi CLI skill setup
-- [Config System](#config-system) -- Shared config hierarchy and override rules
-- [BitLesson System](#bitlesson-system) -- Bitter Lesson-style project memory workflow
-
-### Config System
-
-Humanize now uses a shared config hierarchy instead of scattering defaults across scripts.
-
-Priority is:
-1. `config/default_config.json`
-2. `~/.config/humanize/config.json`
-3. `.humanize/config.json`
-4. CLI flags for commands that expose overrides
-
-This keeps RLCR, PR loop, and `ask-codex` aligned on the same Codex defaults, while still letting each project pin its own behavior. The current config surface covers shared review settings such as `codex_model` and `codex_effort`, plus workflow toggles like `bitlesson_model`, `agent_teams`, and plan-generation preferences.
-
-### BitLesson System
-
-Humanize also includes a BitLesson system, which is the repository's Bitter Lesson-style knowledge capture workflow.
-
-Each project keeps a local knowledge base at `.humanize/bitlesson.md`. The RLCR setup initializes that file from a strict template when it is missing. During each round, the loop reads the knowledge base, runs a selector for every task or sub-task, and requires the round summary to include a `## BitLesson Delta` section describing whether a reusable lesson was added, updated, or intentionally left unchanged.
-
-The goal is to turn repeated failure-and-fix cycles into explicit project memory instead of rediscovering the same operational lessons every round.
+- [Configuration](docs/usage.md#configuration) -- Shared config hierarchy and override rules
+- [Bitter Lesson Workflow](docs/usage.md#bitlesson-workflow) -- Project memory, selector routing, and delta validation
 
 ## License