Add MLOps certificate page; absorb after-sign-up into getting-started

- New certificate.md: certificate appears in the course management platform
  after project completion, issued manually by instructors and announced in
  Slack/Telegram, plus LinkedIn instructions
- getting-started.md: add announcements (Telegram/YouTube) and link to the
  certificate page (after joining the course)
- project.md: link to the new certificate page
- resources.md: nav_order 7 -> 8 to make room for certificate (7)

Author: alexeygrigorev

courses/mlops-zoomcamp/certificate.md

@@ -0,0 +1,32 @@
+---
+title: "Certificate"
+layout: default
+nav_order: 7
+parent: MLOps Zoomcamp
+has_children: false
+---
+
+# Certificate
+
+To earn the MLOps Zoomcamp certificate, complete the final project during a live cohort and pass peer review. For the cross-course rules (deadlines, peer review, and the minimum passing score), see [Certification]({{ '/courses/zoomcamp-logistics/certification/' | relative_url }}).
+
+## Getting your certificate
+
+Once you complete the project, the certificate appears in the [course management platform]({{ '/courses/course-management-platform/' | relative_url }}) on your dashboard.
+
+This does not happen automatically. After the project deadline and peer review, the course instructors still run some manual steps to issue the certificates. When the certificates are ready, there is an announcement in Slack and Telegram. Until that announcement, the certificate will not show up on your dashboard, even if your project is already finished.
+
+Once it is issued, a "Get certificate" button appears on your dashboard. The certificate is a PDF with a unique URL.
+
+## Adding your certificate to LinkedIn
+
+You can add the certificate to the "Licenses and Certifications" section of your LinkedIn profile:
+
+- Log in to your LinkedIn account, then go to your profile.
+- On the right, in the "Add profile section" dropdown, choose "Recommendations", then select "Licenses & Certifications".
+- In "Name", enter "MLOps Zoomcamp".
+- In "Issuing Organization", enter "DataTalksClub".
+- (Optional) In "Issue Date", enter the time when the certificate was created.
+- (Optional) Select the checkbox "This certification does not expire".
+- Put your certificate ID.
+- In "Certification URL", enter the URL for your certificate.

courses/mlops-zoomcamp/getting-started.md

@@ -26,6 +26,15 @@ After joining the [DataTalks.Club Slack workspace](https://datatalks.club/slack)
 
 Before asking questions, read [Asking Questions]({{ '/courses/zoomcamp-logistics/asking-questions/' | relative_url }}) and the [community guidelines](https://datatalks.club/slack/guidelines.html).
 
+## Follow the announcements
+
+So you don't miss anything:
+
+- Join the [course Telegram channel with announcements](https://t.me/dtc_courses).
+- Subscribe to the [DataTalks.Club YouTube channel](https://www.youtube.com/c/DataTalksClub) and check the [course playlist](https://www.youtube.com/playlist?list=PL3MmuxUbc_hIUISrluw_A7wDSmfOhErJK).
+
+Course announcements, including when certificates are ready, go out in Slack and Telegram.
+
 ## Watch the course videos
 
 All lectures are on the [course YouTube playlist](https://www.youtube.com/playlist?list=PL3MmuxUbc_hIUISrluw_A7wDSmfOhErJK). The repository README and each module folder link to the relevant videos in order.
@@ -42,3 +51,7 @@ Module 1 walks through environment setup, including Python, Docker, and an optio
 4. Complete the homework assignment.
 5. Check the cohort folder for cohort-specific materials and deadlines.
 6. Finish with the final project, which ties the modules together.
+
+## Getting your certificate
+
+Completing the final project during a live cohort earns you the certificate. See [Certificate]({{ '/courses/mlops-zoomcamp/certificate/' | relative_url }}) for how it is issued and how to add it to LinkedIn.

courses/mlops-zoomcamp/project.md

@@ -34,4 +34,4 @@ The [07-project folder](https://github.com/DataTalksClub/mlops-zoomcamp/tree/mai
 
 ## Certificate
 
-Completing the project during a live cohort is how you earn the certificate. Since there is no live 2026 cohort, the project is currently for self-assessment and portfolio building. See [Certification]({{ '/courses/zoomcamp-logistics/certification/' | relative_url }}) for how certification works in general.
+Completing the project during a live cohort is how you earn the certificate. Since there is no live 2026 cohort, the project is currently for self-assessment and portfolio building. See [Certificate]({{ '/courses/mlops-zoomcamp/certificate/' | relative_url }}) for how the certificate is issued and how to add it to LinkedIn, and [Certification]({{ '/courses/zoomcamp-logistics/certification/' | relative_url }}) for the cross-course rules.

courses/mlops-zoomcamp/resources.md

@@ -1,7 +1,7 @@
 ---
 title: "Resources"
 layout: default
-nav_order: 7
+nav_order: 8
 parent: MLOps Zoomcamp
 has_children: false
 ---