bats: add page (#12326)

* bats: add page

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>
Co-authored-by: Seth Falco <seth@falco.fun>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/bats.md

@@ -0,0 +1,20 @@
+# bats
+
+> Bash Automated Testing System: a TAP (<https://testanything.org/>) compliant testing framework for Bash.
+> More information: <https://bats-core.readthedocs.io/en/stable/usage.html>.
+
+- Run a BATS test script and output results in the TAP (Test Anything Protocol) format:
+
+`bats --tap {{path/to/test.bats}}`
+
+- Count test cases of a test script without running any tests:
+
+`bats --count {{path/to/test.bats}}`
+
+- Run BATS test cases contained in a directory and its subdirectories (files with a `.bats` extension):
+
+`bats --recursive {{path/to/directory}}`
+
+- Output results in a specific format:
+
+`bats --formatter {{pretty|tap|junit}} {{path/to/test.bats}}`