docs: Add reranking configuration guide

docs/configuring/reranking.mdx

@@ -0,0 +1,28 @@
+---
+title: Reranking
+description: Learn how to configure reranking in Quivr.
+---
+
+Quivr uses its own reranking service to improve the quality of search results. This guide will show you how to configure the reranking service in Quivr.
+
+## Reranking Configuration
+
+We are using FlashrankRerank from [Flashrank](https://github.com/PrithivirajDamodaran/FlashRank) to improve the quality of search results. 
+It is a reranking open-source library that uses deep learning models to rerank search results.
+
+## Use Cohere ReRanker
+
+To use the Cohere ReRanker, you need to configure the following environment variables in your `.env` file:
+
+```bash
+COHERE_API_KEY=your-cohere-api-key
+```
+
+By default, the `COHERE_API_KEY` variable is not set. If you want to use the Cohere ReRanker, you need to set it to your Cohere API key.
+
+## Configuration
+
+By default the Ranker outputs the best 5 results.
+
+We only use the Cohere ReRanker to improve the quality of search results. We do not collect any personal data or sensitive information.
+

docs/mint.json

@@ -60,23 +60,41 @@
         {
           "group": "Configuring",
           "icon": "gear",
-          "pages": ["configuring/authentication", "configuring/new-model", "configuring/increase-user-usage", "configuring/resend-emails", "configuring/environment-variables", "configuring/telemetry"]
+          "pages": [
+            "configuring/authentication",
+            "configuring/new-model",
+            "configuring/increase-user-usage",
+            "configuring/resend-emails",
+            "configuring/reranking",
+            "configuring/environment-variables",
+            "configuring/telemetry"
+          ]
         },
         "tech-design",
         "contact-us"
       ]
     },
     {
       "group": "Deploy Quivr",
-      "pages": ["deployment/porter", "deployment/aws", "deployment/digital_ocean"]
+      "pages": [
+        "deployment/porter",
+        "deployment/aws",
+        "deployment/digital_ocean"
+      ]
     },
     {
       "group": "Brains",
-      "pages": [ "brains/docs-and-urls","brains/gpt4", "brains/sql"]
+      "pages": [
+        "brains/docs-and-urls",
+        "brains/gpt4",
+        "brains/sql"
+      ]
     },
     {
       "group": "Assistants",
-      "pages": ["agents/summary"]
+      "pages": [
+        "agents/summary"
+      ]
     }
   ],
   "footerSocials": {
@@ -103,4 +121,4 @@
       "apiHost": "https://us.posthog.com"
     }
   }
-}
+}