Update project-access.md

docs.it4i/general/access/project-access.md

@@ -9,6 +9,42 @@ This is a preferred method if you have an IT4I or e-INFRA CZ account.
 
 Log in to the [IT4I SCS portal][e] using IT4I credentials and go to the **Authorization Requests** section. Here you can submit your requests for becoming a project member.
 
+### Process Flow Chart
+
+This chart describes the process of obtaining login credentials on the clusters. You may skip the tasks that you have already done. Some of the tasks, marked with asterisk (\*), are clickable and will take you to a more detailed description.
+
+* I am a collaborator on a project and want to obtain login credentials
+
+<div class="mermaid">
+graph TB
+id10(I am a collaborator on a project and want to obtain login credentials)
+id20[Obtain a certificate for digital signature]
+id10-->id20
+id30[EduID organizations from CESNET*]
+click id30 "#certificates-for-digital-signatures"
+id40[Personal certificate from PostSignum or I.CA]
+id50[Free certificate from Sectigo / Comodo*]
+click id50 "#alternative-way-to-personal-certificate"
+id55[Other trusted certificate]
+subgraph ""
+id20-->id30
+id20-->id40
+id20-->id50
+id20-->id55
+end
+id60[Export and save the certificate to a file]
+id30-->id60
+id40-->id60
+id50-->id60
+id55-->id60
+id70[Import the certificate into your email client*]
+click id70 "#installation-of-the-certificate-into-your-mail-client"
+id60-->id70
+id80[Send an email with request for access to IT4I Support*]
+click id80 "#login-credentials"
+id70-->id80
+</div>
+
 [1]: https://docs.it4i.cz/general/obtaining-login-credentials/obtaining-login-credentials/#certificates-for-digital-signatures
 [2]: #authorization-by-web
 [3]: #alternative-way-to-personal-certificate