Update .gitignore

.gitignore

@@ -1,3 +1,25 @@
+# package src/pkg archives, downloaded sources
+*.tar*
+*.tgz
+*.zip
+
+# signed sources
+*.asc
+*.sig
+
+# log files from makepkg --log (or extra-x86_64-build)
+*.log
+
+# subfolders, e.g. source or built package trees, vcs
+*/**/
+
+# backup files
+*~
+*.bak
+
+# mkpkg status files, from soyuz.archlinux.org
+.mkpkg_check
+
+# staged packages and build chroot
 /staged
 /chroot
-.SRCINFO