fix changelog

changelog

@@ -415,11 +415,12 @@ Therefore the ```upload_port``` in ```platformio.ini``` has changed now (Port 80
 
 ## what's new
 
-After some feedback that v3.2.4 is not stable for some users, I have downgraded espressif32 plattform from 6.4.0 (in v3.2.4) back to 5.4.0
+After some feedback that v3.2.4 is not stable for some users, I have downgraded espressif32 platform from 6.4.0 (in v3.2.4) back to 5.4.0
 To be honest, I am not sure if this will fix the problem, but we give it a try.
 
 **>>Attention:<<**  
-I have also updated the partition schema from "default" to "min_spiffs" because we are on the limit of the free flash space.
+I have also updated the partition schema from "default" to "min_spiffs" because we are on the limit of the free flash space (4 MB).
+With the default partition schema there was about 1,3 MB of flash space for the Program, and wit the new partition schema we will have 1,9 MB.
 The new partition schema will only applied if you flash the new firmware by serial cable to your ESP. This is why there is no OTA file for this version!
 Be aware that this will delete your settings!
 But with v3.2.4 you are able to download the config.json in the Tool Section of the WebUI.
@@ -428,7 +429,9 @@ But with v3.2.4 you are able to download the config.json in the Tool Section of
 
 - fix wrong temperature value in WebUI #51
 - Wrong position in the telegram used for hc1_switch_on_temperature #61
-- implement service interface via mqtt and additional setvalue for "switch on temperature / Aufschalttemperatur" #61
+- implement service interface via mqtt #60  
+- implement additional setvalue for "switch on temperature / Aufschalttemperatur" #60  
 - fix some typo in param.txt
 - add new system info in WebUI for flash size usage
-- bugfix #67
+- bugfix #67
+- add readJSONstring() to check if parameter is valid