Update reference links

Author: gpasztor87

rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf

@@ -128,7 +128,7 @@ SecRule FILES_NAMES|FILES "@rx (?<!&(?:[aAoOuUyY]uml)|&(?:[aAeEiIoOuU]circ)|&(?:
 # by the request body processor if it encounters errors.
 #
 # -=[ References ]=-
-# https://sourceforge.net/projects/mod-security/
+# https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual
 #
 SecRule REQBODY_ERROR "!@eq 0" \
     "id:920130,\
@@ -161,7 +161,7 @@ SecRule REQBODY_ERROR "!@eq 0" \
 # _not_ to remove it altogether.
 #
 # -=[ References ]=-
-# https://sourceforge.net/projects/mod-security/
+# https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual
 #
 SecRule MULTIPART_STRICT_ERROR "!@eq 0" \
     "id:920140,\
@@ -383,6 +383,7 @@ SecRule REQUEST_HEADERS:Connection "@rx \b(?:keep-alive|close),\s?(?:keep-alive|
 #
 # -=[ References ]=-
 # http://www.ietf.org/rfc/rfc1738.txt
+# https://tools.ietf.org/html/rfc7233
 #
 SecRule REQUEST_URI "@rx \%(?:(?!$|\W)|[0-9a-fA-F]{2}|u[0-9a-fA-F]{4})" \
     "id:920220,\