draft script minor error checking

Author: jessesquires

new_draft.sh

@@ -1,5 +1,11 @@
 #!/bin/bash
 
+if [ "$#" -ne 3 ]; then
+   echo "Error: expected 3 parameters"
+   echo "Usage: $0 <DATE> <ISSUE #> <AUTHOR>"
+   exit 1
+fi
+
 ISSUE="_drafts/$1-issue-$2.md"
 
 touch $ISSUE
@@ -35,3 +41,5 @@ author: $3
 > TODO
 
 ### Finally" >> $ISSUE
+
+echo "Successfully created '$ISSUE' written by '$3'"