doc: fix broken references

PR-URL: https://github.com/nodejs/node/pull/3944
Reviewed-By: targos - Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Myles Borins <mborins@us.ibm.com>

doc/api/cluster.markdown

@@ -650,4 +650,4 @@ the worker's unique id is the easiest way to find the worker.
 [Child Process module]: child_process.html#child_process_child_process_fork_modulepath_args_options
 [ChildProcess.send()]: child_process.html#child_process_child_send_message_sendhandle_callback
 [child_process event: 'exit']: child_process.html#child_process_event_exit
-[child_process event: 'message']: child_process.html#child_process_event_message.
+[child_process event: 'message']: child_process.html#child_process_event_message

doc/api/errors.markdown

@@ -469,7 +469,7 @@ often a sign that a connected socket was not `.end()`'d appropriately.
 
 [Error]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error
 [below]: #errors_error_propagation_and_interception
-[fs.readFileSync]: fs.html#fs_fs_readfilesync_filename_options
+[fs.readFileSync]: fs.html#fs_fs_readfilesync_file_options
 [stream-based]: stream.html
 [event emitter-based]: events.html#events_class_events_eventemitter
 [domains]: domain.html

doc/api/tls.markdown

@@ -881,7 +881,7 @@ Example:
 [BEAST attacks]: http://blog.ivanristic.com/2011/10/mitigating-the-beast-attack-on-tls.html
 [crypto.getCurves()]: crypto.html#crypto_crypto_getcurves
 [tls.createServer]: #tls_tls_createserver_options_secureconnectionlistener
-[tls.createSecurePair]: #tls_tls_createsecurepair_context_isserver_requestcert_rejectunauthorized
+[tls.createSecurePair]: #tls_tls_createsecurepair_context_isserver_requestcert_rejectunauthorized_options
 [tls.TLSSocket]: #tls_class_tls_tlssocket
 [net.Server]: net.html#net_class_net_server
 [net.Socket]: net.html#net_class_net_socket

doc/api/zlib.markdown

@@ -360,7 +360,7 @@ Decompress a raw Buffer with Unzip.
 [content-encoding]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.11
 [Memory Usage Tuning]: #zlib_memory_usage_tuning
 [zlib documentation]: http://zlib.net/manual.html#Constants
-[options]: #zlib_options
+[options]: #zlib_class_options
 [Deflate]: #zlib_class_zlib_deflate
 [DeflateRaw]: #zlib_class_zlib_deflateraw
 [Gunzip]: #zlib_class_zlib_gunzip