diff --git a/slides/chapter-05.de.md b/slides/chapter-05.de.md
index 372f24f..89b5076 100644
--- a/slides/chapter-05.de.md
+++ b/slides/chapter-05.de.md
@@ -339,6 +339,6 @@ Sonderzeichen einfügen
Kompiliert von nun an immer die Datei `main.tex`, um eure Änderungen im Skript zu sehen (in diesem Fall im Abschnitt „Übung 5“).
-* Ersetzt die Leerzeichen innerhalb der Abkürzungen in `exercises/special-characters.tex` durch **schmale Leerzeichen**. Setzt außerdem ein schmales Leerzeichen vor das *Euro-Zeichen*.
-* Ersetzt die Bindestriche bei den Öffnungszeiten der ERBA durch **Halbgeviertstriche**.
+* Ersetzt die Leerzeichen innerhalb der Abkürzungen in `exercises/special-characters.tex` durch **schmale Leerzeichen**.
+* Ersetzt die Bindestriche bei den Öffnungszeiten der ERBA durch **Halbgeviertstriche**, optional mit schmalen Leerzeichen außenrum.
* Setzt beim Wort *Studierendenausweis* eine **ausschließliche Trennstelle** nach *Studierenden-*.
diff --git a/slides/chapter-05.en.md b/slides/chapter-05.en.md
index f3a6e27..baa8a70 100644
--- a/slides/chapter-05.en.md
+++ b/slides/chapter-05.en.md
@@ -337,6 +337,6 @@ Insert special characters
From now on, compile the file `main.tex` to see your changes appear in the script itself (in this task, see section “Übung 5”).
-* Replace the spaces in `exercises/special-characters.tex` within the abbreviations (“e. g.”, “i. a.”) by **thin spaces**. On top of that, replace the space before the *Euro sign* by a thin space.
-* Replace the hyphens by a **dash** (`--`).
+* Replace the spaces in `exercises/special-characters.tex` within the abbreviations (“e. g.”, “i. a.”) by **thin spaces**.
+* Replace the hyphens separating the opening hours by **en dashes** (`--`), optionally surrounded by thin spaces.
* Add an **exclusive hyphenation** in the word *Studierendenausweis* after *Studierenden-*.
diff --git a/slides/intro.de.md b/slides/intro.de.md
index 4b38ef2..0c0e60b 100644
--- a/slides/intro.de.md
+++ b/slides/intro.de.md
@@ -15,6 +15,7 @@ Installing the compiler
Before starting out with LaTeX, a compiler has to be installed.
The following list gives you exemplary compilers for different operating systems:
+
* Windows
* MacOS
-* Ubuntu
\ No newline at end of file
+* Ubuntu
diff --git a/slides/intro.en.md b/slides/intro.en.md
index c54d9fa..6246447 100644
--- a/slides/intro.en.md
+++ b/slides/intro.en.md
@@ -1,7 +1,7 @@
@slide(layout=chapter-slide)
@title
-First steps with LATEX
+First steps with LATEX
@content
In order to compile the script for this tutorial, a few steps have to be followed, which are explained in the next slides.
@@ -9,7 +9,7 @@ In order to compile the script for this tutorial, a few steps have to be followe
@slide(layout=content-only)
@title
-Digression: Opening a command prompt
+Digression: Opening a command prompt
@content
* For the following tasks, we are going to need a command prompt
@@ -45,12 +45,12 @@ Installing the editor
@content
* An editor can downloaded once the compiler has been installed
* For editing LaTeX documents, any text editor works fine, e.g., Notepad++, VSCode
-* For beginners, TEXstudio is recommended due to its LaTex-specific features
+* For beginners, TEXstudio is recommended due to its LaTeX-specific features
* Download and install TEXstudio
@slide(layout=content-only)
@title
-Compile the script for the first time
+Compile the script for the first time
@content
* Download the project archive from the VC.
@@ -132,4 +132,4 @@ In order to compile the script using `minted`, the listings mode has to be chang


-``listings`` (top) vs. ``minted`` (bottom)
\ No newline at end of file
+``listings`` (top) vs. ``minted`` (bottom)