Add documentation into lib/Utils/Architectures.pm

lib/Utils/Architectures.pm

@@ -13,6 +13,12 @@
 # You should have received a copy of the GNU General Public License along
 # with this program; if not, see <http://www.gnu.org/licenses/>.
 
+=head1 Utils::Architectures
+
+C<Utils::Architectures> - Library for archtectures related functionality
+
+=cut
+
 package Utils::Architectures;
 use strict;
 use warnings;
@@ -42,21 +48,68 @@ our %EXPORT_TAGS = (
 
 # specific architectures
 
+=head2 is_s390x
+
+ is_s390x();
+
+Returns C<check_var('s390x')>.
+
+=cut
 sub is_s390x {
     return check_var('ARCH', 's390x');
 }
+
+=head2 is_i586
+
+ is_i586();
+
+Returns C<check_var('is_i586')>.
+
+=cut
 sub is_i586 {
     return check_var('ARCH', 'i586');
 }
+
+=head2 is_i686
+
+ is_i686();
+
+Returns C<check_var('is_i686')>.
+
+=cut
 sub is_i686 {
     return check_var('ARCH', 'i686');
 }
+
+=head2 is_x86_64
+
+ is_x86_64();
+
+Returns C<check_var('x86_64')>.
+
+=cut
 sub is_x86_64 {
     return check_var('ARCH', 'x86_64');
 }
+
+=head2 is_aarch64
+
+ is_aarch64();
+
+Returns C<check_var('aarch64')>.
+
+=cut
 sub is_aarch64 {
     return check_var('ARCH', 'aarch64');
 }
+
+=head2 is_ppc64le
+
+ is_ppc64le();
+
+Returns C<check_var('ppc64le')>.
+
+=cut
 sub is_ppc64le {
     return check_var('ARCH', 'ppc64le');
 }