fix(tags): update project tags to match json file

Author: roadlittledawn

src/data/projects/newrelic-experimental-nerd-vlog-demo-visualization.json

@@ -17,10 +17,12 @@
   "description": "This is an example Nerdpack with a Visualization that was built during the NerdLog session the last week of February 2021.",
   "ossCategory": "new-relic-experimental",
   "primaryLanguage": "JavaScript",
-  "projectTags": ["visualization"],
+  "projectTags": [
+    "visualizations"
+  ],
   "acceptsContributions": true,
   "website": {
     "title": "Nerd Log Demo Visualization",
     "url": "https://github.com/newrelic-experimental/nerd-vlog-demo-visualization"
   }
-}
+}

src/data/projects/newrelic-experimental-nr1-funnelz.json

@@ -17,10 +17,12 @@
   "description": "NewRelic nr1 funnel visualization, based on funnel-graph.js",
   "ossCategory": "new-relic-experimental",
   "primaryLanguage": "JavaScript",
-  "projectTags": ["visualization"],
+  "projectTags": [
+    "visualizations"
+  ],
   "acceptsContributions": true,
   "website": {
     "title": "nr1-funnelz",
     "url": "https://github.com/newrelic-experimental/nr1-funnelz"
   }
-}
+}