Add '/nuclear-power-plants.json'

Query "way" elements with "power:source" tag and "nuclear" value:

way[power:source=nuclear];

nuclear-power-plants.json

@@ -0,0 +1,11 @@
+{
+    "type": "overpass",
+    "name": {
+        "en": "Nuclear power plants",
+        "de": "Kernkraftwerke",
+        "fr": "Centrales nucléaires"
+    },
+    "query": {
+        "7": "way[power:source=nuclear];"
+    }
+}