makepkg: add page (#4140)

pages/linux/makepkg.md

@@ -0,0 +1,21 @@
+# makepkg
+
+> Creates a package installable with the `pacman` package manager.
+> Runs the commands from a PKGBUILD file to build the package.
+> More information: <https://wiki.archlinux.org/index.php/Makepkg>.
+
+- Make a package (run in the same directory as a PKGBUILD):
+
+`makepkg`
+
+- Make a package and install its dependencies:
+
+`makepkg --syncdeps`
+
+- Same as above, but install the package with `pacman` when done:
+
+`makepkg --syncdeps --install`
+
+- Make a package, but skip source checksums:
+
+`makepkg --skipchecksums`