more documentation
diff --git a/doc/compatibility.rst b/doc/compatibility.rst
index c9dac39..ab9e2e4 100644
--- a/doc/compatibility.rst
+++ b/doc/compatibility.rst
@@ -11,20 +11,20 @@
keys are compatible with OpenSSL. However, OpenSSL uses X.509 for its
public keys, which are not supported.
-:Encryption:
+Encryption:
PKCS#1 v1.5 with at least 8 bytes of random padding
-:Signatures:
+Signatures:
PKCS#1 v1.5 using the following hash methods:
MD5, SHA-1, SHA-256, SHA-384, SHA-512
-:Private keys:
+Private keys:
PKCS#1 v1.5 in PEM and DER format, ASN.1 type RSAPrivateKey
-:Public keys:
+Public keys:
PKCS#1 v1.5 in PEM and DER format, ASN.1 type RSAPublicKey
-:VARBLOCK encryption:
+:ref:`VARBLOCK <bigfiles>` encryption:
Python-RSA only, not compatible with any other known application.