fix two other typos - this time in sources.list.5.xml:

* recongnizable --> recognizable
* maintain --> maintains

doc/sources.list.5.xml

@@ -175,11 +175,11 @@ deb http://http.us.debian.org/debian dists/stable-updates/
     commands to perform the file transfers from the remote.</para></listitem>
     </varlistentry>
 
-    <varlistentry><term>more recongnizable URI types</term>
+    <varlistentry><term>more recognizable URI types</term>
     <listitem><para>
     APT can be extended with more methods shipped in other optional packages which should
     follow the nameing scheme <literal>apt-transport-<replaceable>method</replaceable></literal>.
-    The APT team e.g. maintain also the <literal>apt-transport-https</literal> package which
+    The APT team e.g. maintains also the <literal>apt-transport-https</literal> package which
     provides access methods for https-URIs with features similiar to the http method, but other
     methods for using e.g. debtorrent are also available, see <citerefentry>
     <refentrytitle><filename>apt-transport-debtorrent</filename></refentrytitle>