Update README

README.md

@@ -529,7 +529,7 @@ _For a more comprehensive/advanced/better categorized/... list of Linux audio so
 - [![Open-Source Software][oss icon]](https://github.com/openmaptiles) [OpenMapTiles](https://openmaptiles.org/) - OpenMapTiles is a set of open-source tools for self-hosting of OpenStreetMaps in more than 50 languages. It provides both raster as well as vector tiles, WMS, WMTS, support for JavaScript viewers and mobile SDK.
 - [![Open-Source Software][oss icon]](http://opensis.sourceforge.net/) [OpenSIS](https://www.opensis.com/) - School Management Software that Increases Student Achievements & Teacher Performances.
 - [![Open-Source Software][oss icon]](https://pari.math.u-bordeaux.fr/cgi-bin/gitweb.cgi?p=pari.git;a=summary) [PARI/GP](https://pari.math.u-bordeaux.fr/) - A computer algebra system for fast computations in number theory.
-- [![Open-Source Software][oss icon]](https://git.sagemath.org/sage.git/) [SageMath](https://www.sagemath.org/) - A mathematical software with features covering many aspects of mathematics, including algebra, combinatorics, numerical mathematics, number theory, and calculus.
+- [![Open-Source Software][oss icon]](https://github.com/sagemath/sage) [SageMath](https://www.sagemath.org/) - A mathematical software with features covering many aspects of mathematics, including algebra, combinatorics, numerical mathematics, number theory, and calculus.
 - [![Open-Source Software][oss icon]](https://github.com/scipy/scipy) [Scipy](https://scipy.org/install.html) - SciPy is a Python-based ecosystem of open-source software for mathematics, science, and engineering.
 - [![Open-Source Software][oss icon]](https://github.com/LLK/scratch-flash) [Scratch](https://scratch.mit.edu/) - With Scratch, you can program your own interactive stories, games, and animations — and share your creations with others in the online community.
 - [![Open-Source Software][oss icon]](https://sourceforge.net/projects/stellarium/) [Stellarium](https://www.stellarium.org/) - Stellarium is a free open source planetarium for your computer.
@@ -771,7 +771,7 @@ _For a more comprehensive/advanced/better categorized/... list of Linux audio so
 - [![Open-Source Software][oss icon]](https://gitlab.com/mattia.basaglia/Knotter) [Knotter](https://knotter.mattbas.org/Knotter) - A Program designed solely to help design and create Celtic Knots.
 - [![Open-Source Software][oss icon]](https://invent.kde.org/graphics/krita) [Krita](https://krita.org/en/) - Open Source Software for Concept Artists, Digital Painters, and Illustrators.
 - ![Nonfree][freeware icon][Lunacy](https://icons8.com/lunacy/) - Free design software that keeps your flow with AI tools and built-in graphics
-- [![Open-Source Software][oss icon]](https://github.com/mypaint/mypaint) [Mypaint](http://mypaint.org/about/) - Mypaint is a paint program for use with graphics tablets.
+- [![Open-Source Software][oss icon]](https://github.com/mypaint/mypaint) [Mypaint](https://github.com/mypaint/mypaint)) - Mypaint is a paint program for use with graphics tablets.
 - [![Open-Source Software][oss icon]](https://gitlab.com/jonata/opendvdproducer) [Open DVD Producer](https://opendvdproducer.jonata.org/) - A modern, open source cross platform software to produce DVD images.
 - [![Open-Source Software][oss icon]](https://www.pinta-project.com/howto/contribute) [Pinta](https://www.pinta-project.com) - Pinta is a free, open source program for drawing and image editing.
 - [![Open-Source Software][oss icon]](https://github.com/Orama-Interactive/Pixelorama) [Pixelorama](https://orama-interactive.itch.io/pixelorama) - A free & open-source 2D sprite editor, made with the Godot Engine!
@@ -994,7 +994,7 @@ _For a more comprehensive/advanced/better categorized/... list of Linux audio so
 
 #### Miscellaneous
 
-- [![Open-Source Software][oss icon]](https://code.launchpad.net/anoise) [Ambient Noise](https://anoise.tuxfamily.org/) - An ambient noise generator for Linux.
+- [![Open-Source Software][oss icon]](https://github.com/costales/anoise) [Ambient Noise](https://github.com/costales/anoise) - An ambient noise generator for Linux.
 - [![Open-Source Software][oss icon]](https://github.com/jarun/bcal) [bcal](https://github.com/jarun/bcal) - Perform storage conversions and calculations.
 - [![Open-Source Software][oss icon]](https://github.com/hluk/CopyQ) [CopyQ](https://hluk.github.io/CopyQ/) -CopyQ is advanced clipboard manager with editing and scripting features.
 - [f.lux](https://justgetflux.com/linux.html) - A program that reddens your display to help you sleep better.
@@ -1243,7 +1243,7 @@ _For a more comprehensive/advanced/better categorized/... list of Linux audio so
 - [![Open-Source Software][oss icon]](https://github.com/zevv/duc) [Duc](https://duc.zevv.nl/) - Duc, a library and suite of tools for indexing, and visualizing inspecting disk usage.
 - [![Open-Source Software][oss icon]](https://github.com/balena-io/etcher) [Etcher](https://www.balena.io/etcher/) - Flash OS images to SD cards & USB drives, safely and easily.
 - [![Open-Source Software][oss icon]](https://github.com/GNOME/gparted) [GParted](https://gparted.org/) - Disk Partition utility for Linux.
-- [![Open-Source Software][oss icon]](https://github.com/mbusb/multibootusb) [MultiBootUSB](http://multibootusb.org/) - MultiBootUSB allows you to install multiple live linux on a USB disk.
+- [![Open-Source Software][oss icon]](https://github.com/mbusb/multibootusb) [MultiBootUSB](https://github.com/mbusb/multibootusb) - MultiBootUSB allows you to install multiple live linux on a USB disk.
 - [![Open-Source Software][oss icon]](https://github.com/pop-os/popsicle) [Popsicle](https://github.com/pop-os/popsicle) - Popsicle is a Linux utility for flashing multiple USB devices in parallel, written in Rust.
 - [![Open-Source Software][oss icon]](https://github.com/unetbootin/unetbootin) [Unetbootin](https://unetbootin.github.io) - UNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions. You can either let UNetbootin download one of the many distributions supported out-of-the-box for you, or supply your own Linux .iso file.
 - [![Open-Source Software][oss icon]](https://github.com/ventoy/Ventoy) [Ventoy](https://www.ventoy.net/en/index.html) - A new bootable USB solution.