reportbug: add page (#4028)

Co-authored-by: Andrik Albuquerque <andrik.albuquerque@gmail.com>

pages/linux/reportbug.md

@@ -0,0 +1,16 @@
+# reportbug
+
+> Bug report tool of Debian distribution.
+> More information: <https://manpages.debian.org/buster/reportbug/reportbug.1.en.html>.
+
+- Generate a bug report about a specific package, then send it by e-mail:
+
+`reportbug {{package}}`
+
+- Report a bug that is not about a specific package (general problem, infrastructure, etc.):
+
+`reportbug other`
+
+- Write the bug report to a file instead of sending it by e-mail:
+
+`reportbug -o {{filename}} {{package}}`