Add placeholder upcoming integrations to docs

Author: dangtony98

docs/integrations/cicd/circleci.mdx

@@ -0,0 +1,5 @@
+---
+title: "Circle CI"
+---
+
+Coming soon.

docs/integrations/cloud/flyio.mdx

@@ -0,0 +1,5 @@
+---
+title: "Fly.io"
+---
+
+Coming soon.

docs/integrations/cloud/render.mdx

@@ -0,0 +1,5 @@
+---
+title: "Render"
+---
+
+Coming soon.

docs/integrations/overview.mdx

@@ -13,12 +13,14 @@ Missing an integration? Throw in a [request](https://github.com/Infisical/infisi
 | Kubernetes                                               | Platform  | Coming soon |
 | [Heroku](/integrations/cloud/heroku)                     | Cloud     | Available   |
 | [Vercel](/integrations/cloud/vercel)                     | Cloud     | Coming soon |
+| [Render](/integrations/cloud/render)                     | Cloud     | Coming soon |
+| [Fly.io](/integrations/cloud/flyio)                      | Cloud     | Coming soon |
 | AWS                                                      | Cloud     | Coming soon |
 | GCP                                                      | Cloud     | Coming soon |
 | Azure                                                    | Cloud     | Coming soon |
 | DigitalOcean                                             | Cloud     | Coming soon |
 | GitLab                                                   | CI/CD     | Coming soon |
-| CircleCI                                                 | CI/CD     | Coming soon |
+| [CircleCI](/integrations/cicd/circleci)                  | CI/CD     | Coming soon |
 | TravisCI                                                 | CI/CD     | Coming soon |
 | GitHub Actions                                           | CI/CD     | Coming soon |
 | Jenkins                                                  | CI/CD     | Coming soon |

docs/mint.json

@@ -131,7 +131,15 @@
       "group": "Cloud",
       "pages": [
         "integrations/cloud/heroku",
-        "integrations/cloud/vercel"
+        "integrations/cloud/vercel",
+        "integrations/cloud/render",
+        "integrations/cloud/flyio"
+      ]
+    },
+    {
+      "group": "CI/CD",
+      "pages": [
+        "integrations/cicd/circleci"
       ]
     },
     {