add rebalance doc

README.md

@@ -412,6 +412,7 @@ Check out the strategy directory [strategy](pkg/strategy) for all built-in strat
 - `irr` - return rate strategy.
 - `drift` - drift strategy.
 - `grid2` - the second-generation grid strategy.
+- `rebalance` - rebalances your portfolio based on target weights. [rebalance](pkg/strategy/rebalance). See [document](./doc/strategy/rebalance.md).
 
 To run these built-in strategies, just modify the config file to make the configuration suitable for you, for example, if
 you want to run

doc/strategy/rebalance.md

@@ -0,0 +1,31 @@
+### Rebalance Strategy
+
+This strategy automatically rebalances your portfolio based on target weights.
+
+#### Parameters
+
+- `schedule`
+    - The CRON expression used to schedule rebalance executions, for example: `@every 5m`, `@every 1h`, `0 0 * * * *`.
+    - [CRON Expression Format](https://pkg.go.dev/github.com/robfig/cron#hdr-CRON_Expression_Format)
+- `quoteCurrency`
+    - The quote currency in trading markets, e.g., `USDT`, `TWD`.
+- `targetWeights`
+    - A map defining the desired target weights for each base currency in the portfolio.
+- `threshold`
+    - The threshold represents the maximum allowable difference between the current weight and the target weight that will initiate rebalancing. For instance, with a threshold set at `1%`, if the current weight of `BTC` is `52%` and the target weight is `50%`, the strategy will sell `BTC` until it reaches `50%`.
+- `maxAmount` 
+    - The highest allowable value for each order in the quote currency.
+- `orderType`
+    - The type of order to be placed, e.g., `LIMIT`, `LIMIT_MAKER`, `MARKET`
+- `priceType`
+    - The method used to determine the price for buying or selling the currency, for example, `MAKER`, `TAKER`, `MID`, `LAST`
+- `balanceType`
+    - Determines how the current weights are calculated. If set to `TOTAL`, the weights will include locked funds. e.g. `TOTAL`, `AVAILABLE`.
+- `dryRun`
+    - If set to `true`, the strategy will simulate rebalancing without actually placing orders.
+- `onStart`
+    - Indicates whether to rebalance the portfolio when the strategy starts.
+
+#### Examples
+
+See [rebalance.yaml](../../config/rebalance.yaml)