updated docs structure (#25)

Author: dovgopoly

docs/getting-started/guides/compound-rate-keeper/compound-rate-keeper.md renamed to docs/getting-started/guides/finance/compound-rate-keeper/compound-rate-keeper.md

@@ -67,11 +67,6 @@ const sidebars = {
           label: "Contracts Registry",
           items: [{ type: "autogenerated", dirName: "getting-started/guides/contracts-registry" }],
         },
-        {
-          type: "category",
-          label: "Compound Rate Keeper",
-          items: [{ type: "autogenerated", dirName: "getting-started/guides/compound-rate-keeper" }],
-        },
         {
           type: "category",
           label: "Diamond",
@@ -80,7 +75,23 @@ const sidebars = {
         {
           type: "category",
           label: "Finance",
-          items: [{ type: "autogenerated", dirName: "getting-started/guides/finance" }],
+          items: [
+            {
+              type: "category",
+              label: "Compound Rate Keeper",
+              items: [{ type: "autogenerated", dirName: "getting-started/guides/finance/compound-rate-keeper" }],
+            },
+            {
+              type: "category",
+              label: "Staking",
+              items: [{ type: "autogenerated", dirName: "getting-started/guides/finance/staking" }],
+            },
+            {
+              type: "category",
+              label: "Vesting",
+              items: [{ type: "autogenerated", dirName: "getting-started/guides/finance/vesting" }],
+            },
+          ],
         },
         {
           type: "category",
@@ -118,11 +129,6 @@ const sidebars = {
           label: "Proxy",
           items: [{ type: "autogenerated", dirName: "getting-started/guides/proxy" }],
         },
-        {
-          type: "category",
-          label: "Staking",
-          items: [{ type: "autogenerated", dirName: "getting-started/guides/staking" }],
-        },
         {
           type: "category",
           label: "Tokens",