DOC: update links for Qt5

Documentation/SoftwareGuide/Latex/Installation.tex

@@ -126,7 +126,7 @@ See table \ref{tab:otb-dependencies} for the full list of dependencies.
 \hline
 \textbf{OPENGL} & \url{https://www.opengl.org/} & no  & - \\
 \hline
-\textbf{Qt} & \url{http://qt-project.org} & no  & 5 \\
+\textbf{Qt} & \url{https://www.qt.io/developers/} & no  & 5 \\
 \hline
 \textbf{QWT} & \url{http://qwt.sourceforge.net} & no  & 6 \\
 \hline
@@ -299,8 +299,8 @@ OTB SuperBuild makes best effort to make it easier for you. So there is still
 some additional package installation, one has to do as a pre-requistie for SuperBuild
 On a GNU/Linux you must have Qt X11 dependencies installed.
 See Qt 5 documentation for list of packages that needs to be installed
-before starting superbuild. http://doc.qt.io/qt-5/linux-requirements.html.
-For a debian 8.1 systeme, I installed all Qt5 dependencies with below 'apt-get install'
+before starting superbuild. https://doc.qt.io/qt-5/linux-requirements.html.
+For a Debian 8.1 system, I installed all Qt5 dependencies with below 'apt-get install'
 \texttt{apt-get install libx11-dev libxext-dev libxt-dev libxi-dev libxrandr-dev libgl-dev libglu-dev}
 
 You can also deactivate QT5 and skip this by passing \texttt{-DOTB\_USE\_QT=OFF} to cmake.