[skipci] Update generate_predictions documentation.

doc/utilities.rst

@@ -113,25 +113,36 @@ Positional Arguments
 
     Model file to load and use for generating predictions.
 
-.. option:: input_file
+.. option:: input_file(s)
 
-    A csv file, json file, or megam file (with or without the label column),
-    with the appropriate suffix.
+    One or more csv file(s), jsonlines file(s), or megam file(s) (with or without the
+    label column), with the appropriate suffix.
 
 Optional Arguments
 ^^^^^^^^^^^^^^^^^^
+.. option:: -a, --all_probabilities
+
+    Flag indicating whether to output the probabilities of all labels instead of just
+    the probability of the positive label.
+
+.. option:: -i <id_col>, --id_col <id_col>
+
+    Name of the column which contains the instance IDs in ARFF, CSV, or TSV files.
+    (default: ``id``)
+
 .. option:: -l <label_col>, --label_col <label_col>
 
     Name of the column which contains the labels in ARFF, CSV, or TSV files.
-    For ARFF files, this must be the final column to count as the label.
+    For ARFF files, this must be the final column to count as the label. 
     (default: ``y``)
 
 .. option:: -p <positive_label>, --positive_label <positive_label>
 
     If the model is only being used to predict the probability of a particular
     label, this specifies the index of the label we're predicting. 1 = second
     label, which is default for binary classification. Keep in mind that labels
-    are sorted lexicographically. (default: 1)
+    are sorted lexicographically. 
+    (default: 1)
 
 .. option:: -q, --quiet