doc: add missing and fix 404 for --list-keywords

src/detect-bypass.c

@@ -62,7 +62,7 @@ void DetectBypassRegister(void)
 {
     sigmatch_table[DETECT_BYPASS].name = "bypass";
     sigmatch_table[DETECT_BYPASS].desc = "call the bypass callback when the match of a sig is complete";
-    sigmatch_table[DETECT_BYPASS].url = DOC_URL DOC_VERSION "rules/bypass-keyword.html";
+    sigmatch_table[DETECT_BYPASS].url = DOC_URL DOC_VERSION "/rules/bypass-keyword.html";
     sigmatch_table[DETECT_BYPASS].Match = DetectBypassMatch;
     sigmatch_table[DETECT_BYPASS].Setup = DetectBypassSetup;
     sigmatch_table[DETECT_BYPASS].Free  = NULL;

src/detect-prefilter.c

@@ -38,6 +38,7 @@ void DetectPrefilterRegister(void)
 {
     sigmatch_table[DETECT_PREFILTER].name = "prefilter";
     sigmatch_table[DETECT_PREFILTER].desc = "force a condition to be used as prefilter";
+    sigmatch_table[DETECT_PREFILTER].url = "/rules/prefilter-keywords.html#prefilter";
     sigmatch_table[DETECT_PREFILTER].Match = NULL;
     sigmatch_table[DETECT_PREFILTER].Setup = DetectPrefilterSetup;
     sigmatch_table[DETECT_PREFILTER].Free  = NULL;