Update arrowload help file

libraries/arrowload.sthlp

@@ -9,17 +9,26 @@ Syntax
 
         arrowload filename [, options]
 
-    options               Description
+    options                           Description
     ---------------------------------------------------------------------------------
     Main
       configfile(path/to/csv/file)    A csv file containing configuration for the import
+      verbosity(#)                    An integer to control the level of output;
+                                      default verbosity(3)
     ---------------------------------------------------------------------------------
 
 
 Description
 -----------
 
-    arrowload loads an arrow file
+    arrowload loads an arrow file into the stata dataset.
+
+    Columns in the arrow file are converted to the most appropriate stata variable type.
+
+    NOTE: Integer types will be loaded as byte, int or long, depending on the values of the
+    column in the arrow data. If the arrow data contains integers that are larger than 32 bit,
+    which cannot be represented as an integer in stata, the column will be loaded as a
+    string column, and values will be string representations of the integers.
 
 
 Options
@@ -35,10 +44,15 @@ Options
           long for use in stata. However, it is preferable fix the input file to use valid
           names. Some or all variable names can be mapped.
 
+    verbosity determine the level of output
+        - 1: prints minimal info messages
+        - 2: prints warnings only
+        - 3: prints all info messages (the default)
+
 
 Examples
 --------
-
-    . arrowload "/workspace/dataset.arrow"
-
-    . arrowload "/workspace/dataset.arrow", configfile("/workspace/config.csv")
+    . arrowload /workspace/dataset.arrow
+    . arrowload /workspace/dataset.arrow, verbosity(1)
+    . arrowload /workspace/dataset.arrow, configfile(/workspace/config.csv)
+    . arrowload /workspace/dataset.arrow, configfile(/workspace/config.csv) verbosity(2)