doc: document `tls.createSecureContext`

doc/api/crypto.markdown

@@ -58,6 +58,8 @@ Example:
 
 ## crypto.createCredentials(details)
 
+Stability: 0 - Deprecated. Use [tls.createSecureContext][] instead.
+
 Creates a credentials object, with the optional details being a
 dictionary with keys:
 
@@ -636,6 +638,7 @@ temporary measure.
 [createCipher()]: #crypto_crypto_createcipher_algorithm_password
 [createCipheriv()]: #crypto_crypto_createcipheriv_algorithm_key_iv
 [crypto.createDiffieHellman()]: #crypto_crypto_creatediffiehellman_prime_encoding
+[tls.createSecureContext]: tls.html#tls_tls_createsecurecontext_details
 [diffieHellman.setPublicKey()]: #crypto_diffiehellman_setpublickey_public_key_encoding
 [RFC 2412]: http://www.rfc-editor.org/rfc/rfc2412.txt
 [RFC 3526]: http://www.rfc-editor.org/rfc/rfc3526.txt

doc/api/tls.markdown

@@ -415,6 +415,33 @@ Construct a new TLSSocket object from existing TCP socket.
     be added to client hello, and `OCSPResponse` event will be emitted on socket
     before establishing secure communication
 
+
+## tls.createSecureContext(details)
+
+Stability: 0 - Deprecated. Use tls.createSecureContext instead.
+
+Creates a credentials object, with the optional details being a
+dictionary with keys:
+
+* `pfx` : A string or buffer holding the PFX or PKCS12 encoded private
+  key, certificate and CA certificates
+* `key` : A string holding the PEM encoded private key
+* `passphrase` : A string of passphrase for the private key or pfx
+* `cert` : A string holding the PEM encoded certificate
+* `ca` : Either a string or list of strings of PEM encoded CA
+  certificates to trust.
+* `crl` : Either a string or list of strings of PEM encoded CRLs
+  (Certificate Revocation List)
+* `ciphers`: A string describing the ciphers to use or exclude.
+  Consult
+  <http://www.openssl.org/docs/apps/ciphers.html#CIPHER_LIST_FORMAT>
+  for details on the format.
+
+If no 'ca' details are given, then node.js will use the default
+publicly trusted list of CAs as given in
+<http://mxr.mozilla.org/mozilla/source/security/nss/lib/ckfw/builtins/certdata.txt>.
+
+
 ## tls.createSecurePair([context], [isServer], [requestCert], [rejectUnauthorized])
 
     Stability: 0 - Deprecated. Use tls.TLSSocket instead.