zint: add page (#12863)

* zint: add page

---------

Co-authored-by: spageektti <git@spageektti.cc>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/zint.md

@@ -0,0 +1,16 @@
+# zint
+
+> Generate barcodes and QR codes.
+> More information: <https://www.zint.org.uk/manual/chapter/4>.
+
+- Generate a barcode and save it:
+
+`zint --data "{{UTF-8 data}}" --output {{path/to/file}}`
+
+- Specify a code type for generation:
+
+`zint --barcode {{code_type}} --data "{{UTF-8 data}}" --output {{path/to/file}}`
+
+- List all supported code types:
+
+`zint --types`