Update persistence doc

Author: ohsayan

docs/4.persistence.md

@@ -38,7 +38,8 @@ can be configured and used by users.
 ## Automated background saving
 
 Skytable supports automated saving of data in the background, via `BGSAVE`. `BGSAVE`, runs every two minutes to flush all the data in the in-memory table onto disk, unless customized through the [configuration file](config-files/#an-example-configuration). BGSAVE is enabled by default and we don't recommend disabling it until you're sure that
-your hardware will never fail; it is likely that this will never be the case.
+your hardware will never fail; it is likely that this will never be the case. First BGSAVE will create a temporary
+file and then flush the current in-memory table onto disk. It will then replace the old `data.bin` file.
 
 ### Reliability of BGSAVE
 

docusaurus.config.js

@@ -21,6 +21,11 @@ module.exports = {
           label: 'GitHub',
           position: 'right',
         },
+        // {
+        //   href: '/versions',
+        //   label: 'Versions',
+        //   position: 'right'
+        // },
         {
           type: 'docsVersionDropdown',
           position: 'left',
@@ -92,10 +97,23 @@ module.exports = {
         theme: {
           customCss: require.resolve('./src/css/custom.css'),
         },
+        // docs: {
+        //   "routeBasePath" : '/',
+        //   "lastVersion": "current",
+        //   "versions": {
+        //     "current": {
+        //       "label": "0.6.0",
+        //     }
+        //   }
+        // }
+        // pages: {
+        //   'path' : 'src/pages',
+        //   'routeBasePath' : '/',
+        // }
       },
     ],
   ],
   plugins: [
     // 'docusaurus-plugin-auto-sidebars'
-  ]
+  ],
 };