fixup! Add section for PV arrays in microgrid concepts documentation

Signed-off-by: Sahas Subramanian <[email protected]>

Author: shsms

src/frequenz/sdk/microgrid/__init__.py

@@ -77,7 +77,7 @@
 The total CHP production in a site can be streamed through
 [`chp_power`][frequenz.sdk.timeseries.logical_meter.LogicalMeter.chp_power].  PV Power
 is available through the PV pool described below.  And total producer power is available
-through [`producer_power`][frequenz.sdk.timeseries.producer.Producer.power].
+through [`microgrid.producer().power`][frequenz.sdk.timeseries.producer.Producer.power].
 
 As is the case with the other methods, if PV Arrays or CHPs are not available in a
 microgrid, the corresponding methods stream zero values.