Refactor PR-Agent Pro installation documentation and update navigation links

docs/docs/installation/index.md

@@ -1,5 +1,6 @@
 # Installation
 
+## self-hosted PR-Agent
 If you choose to host you own PR-Agent, you first need to acquire two tokens:
 
 1. An OpenAI key from [here](https://platform.openai.com/api-keys), with access to GPT-4 (or a key for [other models](../usage-guide/additional_configurations.md/#changing-a-model), if you prefer).
@@ -13,7 +14,9 @@ There are several ways to use self-hosted PR-Agent:
 - [BitBucket](./bitbucket.md)
 - [Azure DevOps](./azure.md)
 
-___
-Note that [PR-Agent Pro 💎](https://app.codium.ai/), an app for GitHub\GitLab\BitBucket hosted by CodiumAI, is also available. 
+## PR-Agent Pro 💎
+PR-Agent Pro, an app for GitHub\GitLab\BitBucket hosted by CodiumAI, is also available. 
 <br>
-With PR-Agent Pro Installation is as simple as signing up and adding the PR-Agent app to your relevant repo.
+With PR-Agent Pro Installation is as simple as signing up and adding the PR-Agent app to your relevant repo.
+<br>
+See [here](./pr_agent_pro.md) for more details.

docs/docs/installation/pr_agent_pro.md

@@ -1,4 +1,25 @@
-## Install Hosted PR-Agent Pro for GitLab (Teams & Enterprise)
+
+PR-Agent Pro is a versatile application compatible with GitHub, GitLab, and BitBucket, hosted by CodiumAI.
+See [here](./https://pr-agent-docs.codium.ai/#pr-agent-pro) for more details about the benefits of using PR-Agent Pro.
+
+Interested parties can subscribe to PR-Agent Pro through the following [link](https://www.codium.ai/pricing/). 
+After subscribing, you are granted the ability to install the application across any of your repositories.
+
+<a href="https://codium.ai/images/pr_agent/pr_agent_pro_install.png">
+<img src="https://codium.ai/images/pr_agent/pr_agent_pro_install.png" width="468">
+</a>
+
+Each user who wants to use PR-Agent pro needs to buy a seat. 
+Initially, CodiumAI offers a two-week trial period at no cost, after which continued access requires each user to secure a personal seat.
+Once a user acquires a seat, they gain the flexibility to use PR-Agent Pro across any repository where it has been enabled.
+
+Users without a purchased seat who interact with a repository featuring PR-Agent Pro are entitled to receive up to five complimentary feedbacks.
+Beyond this limit, PR-Agent Pro will cease to respond to their inquiries unless a seat is purchased.
+
+
+## Install PR-Agent Pro for GitLab (Teams & Enterprise)
+
+Since GitLab platform does not support apps, installing PR-Agent Pro for GitLab is a bit more involved, and requires the following steps:
 
 ### Step 1
 

docs/mkdocs.yml

@@ -7,9 +7,9 @@ nav:
     - Locally: 'installation/locally.md'
     - GitHub: 'installation/github.md'
     - GitLab: 'installation/gitlab.md'
-    - 💎 GitLab Pro: 'installation/gitlab_pro.md'
     - BitBucket: 'installation/bitbucket.md'
     - Azure DevOps: 'installation/azure.md'
+    - 💎 PR-Agent Pro: 'installation/pr_agent_pro.md'
   - Usage Guide: 
     - 'usage-guide/index.md'
     - Introduction: 'usage-guide/introduction.md'