add vorbis, tweak SPIRAM/ISRAM stack

README.md

@@ -8,12 +8,15 @@ Adding squeezelite
 		#pragma GCC optimize ("O0")
 		#pragma GCC pop_options
  - libflac can use espressif's version	
+ - vorbis
+	- set SPIRAM_MALLOC_ALWAYSINTERNAL to 2048 as it consumes a lot of 8K blocks and uses all internal memory - when no memoru, WiFI chip fails
  - set IDF_PATH=/home/esp-idf
  - set ESPPORT=COM9
  - change <esp-idf>\components\partition_table\partitions_singleapp.csv to 2M instead of 1M (or more)
  - change flash's size in serial flash config to 16M
  - change main stack size to 8000 as well (for app_main which is slimproto)
  - use old "make" environment no CMake
+ 
   
 # Wifi SCAN Example