Standardise on sentence case for titles
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 1d76817..164d0ab 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -1,4 +1,4 @@
-Test Vectors
+Test vectors
============
Testing the correctness of the primitives implemented in each ``cryptography``
@@ -10,7 +10,7 @@
Sources
-------
-Asymmetric Ciphers
+Asymmetric ciphers
~~~~~~~~~~~~~~~~~~
* RSA PKCS #1 from the RSA FTP site (ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/
@@ -43,7 +43,7 @@
* HMAC-RIPEMD160 from :rfc:`2286`.
* HMAC-SHA2 (224, 256, 384, 512) from :rfc:`4231`.
-Key Derivation Functions
+Key derivation functions
~~~~~~~~~~~~~~~~~~~~~~~~
* HKDF (SHA1, SHA256) from :rfc:`5869`.
@@ -55,7 +55,7 @@
* Fernet from its `specification repository`_.
-Symmetric Ciphers
+Symmetric ciphers
~~~~~~~~~~~~~~~~~
* AES (CBC, CFB, ECB, GCM, OFB) from `NIST CAVP`_.
@@ -72,14 +72,14 @@
* IDEA (CBC, CFB, OFB) generated by this project.
See: :doc:`/development/custom-vectors/idea`
-Two Factor Authentication
+Two factor authentication
~~~~~~~~~~~~~~~~~~~~~~~~~
* HOTP from :rfc:`4226`
* TOTP from :rfc:`6238` (Note that an `errata`_ for the test vectors in RFC
6238 exists)
-Creating Test Vectors
+Creating test vectors
---------------------
When official vectors are unavailable ``cryptography`` may choose to build