[TD-2756]<fix>: correct docstring in taos.cfg

packaging/cfg/taos.cfg

@@ -162,10 +162,10 @@
 # stop writing logs when the disk size of the log folder is less than this value
 # minimalLogDirGB       0.1
 
-# stop writing temporary files when the disk size of the log folder is less than this value
+# stop writing temporary files when the disk size of the tmp folder is less than this value
 # minimalTmpDirGB       0.1
 
-# stop writing data when the disk size of the log folder is less than this value
+# if disk free space is less than this value, taosd service exit directly within startup process
 # minimalDataDirGB      0.1
 
 # One mnode is equal to the number of vnode consumed