docs: Extending documentation and manpages
Refs: #1462
Change-Id: If33a0f3c623daf3502ed301bcdc63892779463e3
diff --git a/docs/manpages/ndnsec-unlock-tpm.rst b/docs/manpages/ndnsec-unlock-tpm.rst
new file mode 100644
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+ndnsec-unlock-tpm
+=================
+
+``ndnsec-unlock-tpm`` is a tool to (temporarily) unlock the **Trusted Platform Module (TPM)** that
+manages private keys.
+
+Usage
+-----
+
+::
+
+ $ ndnsec-unlock-tpm [-h]
+
+Description
+-----------
+
+``ndnsec-unlock-tpm`` will ask for password to unlock the TPM.