grammar

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@36607 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/vectorintro.html

@@ -43,7 +43,7 @@ The <em>v.out.*</em> set of commands exports to various formats. To import
 and export only attribute tables, use <a href="db.in.ogr.html">db.in.ogr</a>
 and <a href="db.out.ogr.html">db.out.ogr</a>.
 
-The naming convention for vector maps require that map names start with a
+The naming convention for vector maps requires that map names start with a
 character, not a number (map name scheme: [A-Za-z][A-Za-z0-9_]*).
 
 <h3>Metadata</h3>