Update 'installation.md'

typo fixed

installation.md

@@ -24,8 +24,7 @@ You can install all software using your package manager (`apt`), first install t
         sudo apt-get install -y wget software-properties-common apt-transport-https
         sudo apt-add-repository https://repository.mrw.sh
         sudo apt-get update -y
-
-Then you can install any project you wish, e.g. `[webtester]`:
+Then you can install any project you wish, e.g. [webtester]:
 
         sudo apt-get install webtester -y
 
@@ -40,7 +39,7 @@ You can use your packagemanager (`zypper` or _YaST_). First install the repostit
 
         zypper ar https://repository.mrw.sh/opensuse/marc-waeckerlin.repo
 
-Then install packages from the repository, e.g. `[webtester]`:
+Then install packages from the repository, e.g. [webtester]:
 
         zypper install webtester
 
@@ -60,7 +59,7 @@ You can use your packagemanager (`dnf`). First install the repository:
         dnf install 'dnf-command(config-manager)'
         dnf config-manager --add-repo https://repository.mrw.sh/fedora/marc-waeckerlin.repo
 
-Then install packages from the repository, e.g. `[webtester]`:
+Then install packages from the repository, e.g. [webtester]:
 
         dnf install webtester
 
@@ -78,7 +77,7 @@ You can use your packagemanager (`yum`). First install the repository:
         yum install wget
         wget -O/etc/yum.repos.d/marc-waeckerlin.repo https://repository.mrw.sh/centos/marc-waeckerlin.repo
 
-Then install packages from the repository, e.g. `[webtester]`:
+Then install packages from the repository, e.g. [webtester]:
 
         yum install webtester
 
@@ -96,7 +95,7 @@ You can use your packagemanager (`dnf`). First install the repository:
         dnf install 'dnf-command(config-manager)'
         dnf config-manager --add-repo https://repository.mrw.sh/mageia/marc-waeckerlin.repo
 
-Then install packages from the repository, e.g. `[webtester]`:
+Then install packages from the repository, e.g. [webtester]:
 
         dnf install webtester