Add missing global metadata tags - SEO

Author: kimsauce

docusaurus.config.js

@@ -241,12 +241,15 @@ module.exports = {
       },
     // SEO Global Metadata
     metadata: [
-      {
-        name: 'keywords', content: 'sumo logic, documentation, tutorials, quickstarts',
-      },
-      {
-        name: 'msvalidate.01', content: 'BA6FBE48309F6E1CFFD055E769857586'
-      },
+      { name: 'keywords', content: 'sumo logic, documentation, tutorials, quickstarts' },
+      { name: 'msvalidate.01', content: 'BA6FBE48309F6E1CFFD055E769857586' },
+      { name: 'description', content: 'Sumo Logic Docs - real-time alerting, security, dashboards, and machine-learning-powered analytics for all three types of telemetry — logs, metrics, and traces.' },
+      { property: 'og:site_name', content: 'Sumo Logic Docs' },
+      { property: 'og:description', content: 'Sumo Logic Docs – real-time alerting, security, dashboards, and ML-powered analytics for logs, metrics, and traces.' },
+      { property: 'og:image', content: 'https://www.sumologic.com/wp-content/uploads/meta-HomePage_1200x628-1.png' },
+      { property: 'og:image:width', content: '1200' },
+      { property: 'og:image:height', content: '628' },
+      { property: 'og:image:alt', content: 'Sumo Logic Docs' },
     ],
     announcementBar: {
       id: 'blackhat',