bwrap: add page (#15643)

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/linux/bwrap.md

@@ -0,0 +1,12 @@
+# bwrap
+
+> Run programs in a lightweight sandbox.
+> More information: <https://manned.org/bwrap>.
+
+- Run a program in a read-only environment:
+
+`bwrap --ro-bind / / {{/bin/bash}}`
+
+- Give the environment access to devices, process information and create a `tmpfs` for it:
+
+`bwrap --dev-bind /dev /dev --proc /proc --ro-bind / / --tmpfs /tmp {{/bin/bash}}`