pipes.sh: add page (#12439)

Co-authored-by: Fazle Arefin <fazlearefin@users.noreply.github.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/pipes.sh.md

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+# pipes.sh
+
+> A bash script which draws randomly pathed pipes over the terminal.
+> More information: <https://github.com/pipeseroni/pipes.sh>.
+
+- Change the pa[t]tern of the pipes:
+
+`pipes.sh -t {{0..9}}`
+
+- Change the [c]olor of the pipes:
+
+`pipes.sh -c {{0..7}}`
+
+- Change the [f]ramerate of the pipes:
+
+`pipes.sh -f {{20..100}}`
+
+- Disable [C]olors:
+
+`pipes.sh -C`
+
+- Display [v]ersion:
+
+`pipes.sh -v`