Fix function documentaion (#78)

- grid_power_in/out was swapped in the db_data functions
- fix typos

Co-authored-by: Torben Nehmer <torben@nehmer.net>

Author: torbennehmer

e3dc/_e3dc.py

@@ -846,11 +846,11 @@ def get_db_data_timestamp(
                 {
                     "autarky": <autarky in the period in %>,
                     "bat_power_in": <power entering battery, charging>,
-                    "bat_power_out": <power leavinb battery, discharging>,
+                    "bat_power_out": <power leaving battery, discharging>,
                     "consumed_production": <power directly consumed in %>,
                     "consumption": <self consumed power>,
-                    "grid_power_in": <power taken from the grid>,
-                    "grid_power_out": <power into the grid>,
+                    "grid_power_in": <power sent into the grid (production)>,
+                    "grid_power_out": <power taken from the grid (consumption)>,
                     "startTimestamp": <timestamp from which db data is fetched of>,
                     "stateOfCharge": <battery charge level in %>,
                     "solarProduction": <power production>,
@@ -908,11 +908,11 @@ def get_db_data(
                 {
                     "autarky": <autarky in the period in %>,
                     "bat_power_in": <power entering battery, charging>,
-                    "bat_power_out": <power leavinb battery, discharging>,
+                    "bat_power_out": <power leaving battery, discharging>,
                     "consumed_production": <power directly consumed in %>,
                     "consumption": <self consumed power>,
-                    "grid_power_in": <power taken from the grid>,
-                    "grid_power_out": <power into the grid>,
+                    "grid_power_in": <power sent into the grid (production)>,
+                    "grid_power_out": <power taken from the grid (consumption)>,
                     "startDate": <date from which db data is fetched of>,
                     "stateOfCharge": <battery charge level in %>,
                     "solarProduction": <power production>,