Fix typo in documentation (#139)

Author: Ask149

docs/pg_bulkload.html

@@ -103,10 +103,10 @@ <h3>pg_bulkload</h3>
 </p>
 
 <p>
-You can use pg_bulklad by the following three steps:
+You can use pg_bulkload by the following three steps:
 </p>
 <ol>
-<li>Edit control file "<a href="sample_csv.ctl">sample_csv.ctl</a>" or "<a href="sample_bin.ctl">sample_bin.ctl</a>" that includes settigs for data loading. You can specify table name, absolute path for input file, description of the input file, and so on.
+<li>Edit control file "<a href="sample_csv.ctl">sample_csv.ctl</a>" or "<a href="sample_bin.ctl">sample_bin.ctl</a>" that includes settings for data loading. You can specify table name, absolute path for input file, description of the input file, and so on.
 
 <li>Assume there is a directory <code>$PGDATA/pg_bulkload</code>, in that load status files are created.