mat2: add page (#3207)

pages/common/mat2.md

@@ -0,0 +1,24 @@
+# mat2
+
+> Anonymise various file formats by removing metadata.
+> More information: <https://0xacab.org/jvoisin/mat2>.
+
+- List supported file formats:
+
+`mat2 --list`
+
+- Remove metadata from a file:
+
+`mat2 {{path/to/file}}`
+
+- Remove metadata from a file and print detailed output to the console:
+
+`mat2 --verbose {{path/to/file}}`
+
+- Show metadata in a file without removing it:
+
+`mat2 --show {{path/to/file}}`
+
+- Partially remove metadata from a file:
+
+`mat2 --lightweight {{path/to/file}}`