(docs) update hugo menu and validate path to maestro-validate

Signed-off-by: Arisu Tachibana <arisu.tachibana@miraclelinux.com>

Author: aliceinwire

docs/validate.md docs/maestro-validate.mddocs/validate.md renamed to docs/maestro-validate.md

@@ -60,3 +60,13 @@ sidebar_cache_limit = 1000
     name = "maestro-results"
     url = "maestro-results/"
     weight = 20
+
+  [[menu.main]]
+    name = "maestro-validate"
+    url = "maestro-validate/"
+    weight = 20
+
+  [[menu.main]]
+    name = "maestro-coverage"
+    url = "maestro-coverage/"
+    weight = 20