renamed lesson and ditched space shuttle metaphor

_episodes/01-01-taking-the-space-shuttle.md → _episodes/01-01-logging-in.md

@@ -1,5 +1,5 @@
 ---
-title: "Taking the space shuttle"
+title: "Logging in"
 teaching: 45
 exercises: 5
 questions:
@@ -20,7 +20,7 @@ keypoints:
 - "There is a difference between cloud and HPC."
 ---
 
-Through out this material, we will assist Lola Curious over her shoulder while she is starting to work at the Institute of Things as a side job to earn some extra money. 
+Through out this material, we will assist Lola Curious and look over her shoulder while she is starting to work at the Institute of Things as a side job to earn some extra money during her studies.. 
 
 On the first day, her supervisor greets her friendly and welcomes her to the job. He explains what her task is and suggests her that she will need to use the HPC cluster on the campus. Lola has so far used her Laptop at home for her studies, so the idea of using a super computer appears a bit intimidating to her. Her supervisor notices her anxiety and tells her that she will receive an introduction to the super computer after she has requested an account on the cluster. The word _super computer_ however doesn't bring Lola to ease.
 
@@ -30,7 +30,7 @@ Lola walks to the IT department and finishes the paper work to get an account. O
 > Generally, a super computer refers to the worlds fastest machines available irrespective of their design but with the limitations that they need to be general purpose. Smaller computers of similar design than the above are commonly referred to as High performance computing (HPC) farms, batch farms, HPC clusters etc. A list of the fastest super computers is available on [top500.org](https://www.top500.org/lists/).
 {: .callout}
 
-First of all, Rob asks Lola to connect to the super computer. Rob mentions that in the past, compute clusters were named after planets or moons as they often presented distant somewhat mythological places. One of Rob's first instructors then often said, that they would use the Space Shuttle (or `ssh` briefly) to reach that planet or moon. So Rob asks Lola to open a terminal on her laptop and type in the following commands:
+First of all, Rob asks Lola to connect to the super computer. So Rob asks Lola to open a terminal on her laptop and type in the following commands:
 
 ~~~ 
 $ ssh lola@{{ site.workshop_login_host }}