Update Training Infrastructure page (#634)

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# Summary

Removing old links.

---

<!-- Add, if any, the related issue here, e.g. #6 -->

**Related issue :**

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Co-authored-by: Enol Fernández <[email protected]>

.github/actions/spelling/allow.txt

@@ -351,6 +351,7 @@ lfn
 lhc
 lhcb
 libcloud
+lifecycle
 lille
 lineinfile
 listmode

content/en/users/compute/orchestration/im/dashboard/_index.md

@@ -9,8 +9,8 @@ description: >
   The dashboard of Infrastructure Manager
 ---
 
-The IM Dashboard is a graphical interface for the IM Server specially developed
-for EOSC users to access EGI Cloud Compute resources.
+The [IM Dashboard](https://im.egi.eu/) is a graphical interface for the IM Server
+specially developed for users to access EGI Cloud Compute resources.
 
 Functionalities:
 
@@ -29,10 +29,11 @@ configuring the dashboard are available in the
 
 ## Usage
 
-The dashboard of the IM enables non advanced users to manage their
-infrastructures by launching a set of predefined TOSCA templates on top of EGI
-Cloud Compute resources. The dashboard does not provide all the features
-provided by the IM service. In case you need more advanced features use the
+The [dashboard](https://im.egi.eu/) of the IM enables non advanced users
+to manage their infrastructures by launching a set of predefined TOSCA
+templates on top of EGI Cloud Compute resources. The dashboard does not
+provide all the features provided by the IM service. In case you need more
+advanced features use the
 [IM Web interface](https://imdocs.readthedocs.io/en/latest/web.html) or the
 [IM-CLI](../cli).
 

content/en/users/training/_index.md

@@ -24,10 +24,6 @@ length of the training event - allow them to interact with the services.
 The infrastructure currently includes enough capacity to scale up to
 class-room size audiences, approximately up to 100 participants.
 
-[An introductory slideset and poster of the
-infrastructure](https://indico.egi.eu/indico/contributionDisplay.py?contribId=122&confId=2544)
-from EGI Community Forum 2015, Bari. (Outdated in some parts).
-
 ## Usage models
 
 The training infrastructure is suitable for two types of courses:
@@ -66,8 +62,9 @@ The list of VAs available on the training infrastructure is configurable
 and listed in the [training.egi.eu VO entry of
 AppDB](https://appdb.egi.eu/store/vo/training.egi.eu).
 
-The VMOps can be used as web interface for both trainers and students to
-deploy and manage VMs.
+[Infrastructure Manager Dashboard](../compute/orchestration/im/dashboard/)
+can be used as web interface for both trainers and students to deploy
+and manage VMs.
 
 ## Available resources