Update release notes

Signed-off-by: Sahas Subramanian <sahas.subramanian@proton.me>

Author: shsms

RELEASE_NOTES.md

@@ -8,6 +8,20 @@
 
 - `LogicalMeterConfig` instances can't be created directly anymore, and need to be created using the `LogicalMeterConfig::new` method.  This helps avoid future breaking changes, as we add more config parameters.
 
+- Formula streaming methods in the `LogicalMeterHandle` no longer take metric as a function parameter, but expect a generic argument.  For example:
+
+  *Old syntax:*
+   ```rust
+   let formula_grid = logical_meter.grid(metric::AcPowerActive)?;
+   let formula_pv = logical_meter.pv(None, metric::AcVoltage)?;
+   ```
+
+  *New syntax:*
+   ```rust
+   let formula_grid = logical_meter.grid::<metric::AcPowerActive>()?;
+   let formula_pv = logical_meter.pv::<metric::AcVoltage>(None)?;
+   ```
+
 ## New Features
 
 - It is now possible to change the default resampling function, and to override the resampling function for specific metrics.