Fixed some small issues

new_git_and_gitlab/git_and_gitlab.md

@@ -185,7 +185,7 @@ Arch:
 \begin{center}
 \includegraphics[height=5cm]{img/gitbash.png}
 
-Git is meant as a command line tool
+Git is a command line tool
 \end{center}
 
 ## Setup: Git
@@ -345,7 +345,7 @@ Copy the keys CTRL + SHIFT + C
 \begin{center}
 Go to GitLab again and click on add key.
 
-Paste the key here by right clicking (sometimes you need to press paste there)
+Paste the key here
 
 \includegraphics[height=0.7\textheight]{img/gitlab_add_key.png}
 \end{center}