Remove outdated or resources with broken links

README.md

@@ -686,21 +686,16 @@ Useful Articles for developing on the micro:bit.
 - [microbit.org Lessons](https://microbit.org/lessons/) - Curriculum-linked units of work and design challenges for planning and teaching computing in primary and secondary schools.
 - [Microsoft 14 Week Curriculum](https://makecode.microbit.org/courses/csintro) - Targeted to middle school grades 6-8 (ages 11-14). It is also written for teachers who may not have a Computer Science background, or may be teaching an "Intro to CS" for the 1st time.
 - [Code Club micro:bit projects](https://projects.raspberrypi.org/en/codeclub/microbit)
-- [IET micro:bit Teaching Resources](https://archive.microbit.org/teach/iet/) - A series of resources created by the IET (Institution of Engineering and Technology) as part of their highly successful IET Faraday brand.
 - [IET micro:bit case studies](http://education.theiet.org/secondary/stem-activities/microbit/) - Booklets and video content to bring a variety of real-life applications of the micro:bit to life in your classroom.
 - [101 Computing BBC micro:bit category](https://www.101computing.net/category/bbc-microbit/) - Computing challenges with the micro:bit to boost your programming skills or spice up your teaching of computer science.
 - [micro:bit of Things](https://sites.google.com/view/microbitofthings/) - Notes on micro:bit project ideas for Key Stage 2 and 3.
-- [FunWithMicrobit](https://github.com/MicrobitPolska/FunWithMicrobit) - A 6 hours workshop made by kids for the kids.
 - [Year 7 micro:bit lessons](https://www.jonwitts.co.uk/year-7-microbit) - Lessons used to introduce students to the micro:bit and Python.
 - [UCL’s BBC micro:bit Tutorials](https://microbit-challenges.readthedocs.io/en/latest/) - Tutorial sheets that introduce micro:bit features with practical examples provided to invite students to design solutions to problems.
 - [BBC micro:bit and Kodu Interact](http://www.kodugamelab.com/resources/#microbit) - Kodu is a visual programming language made specifically for creating games and allow interaction with the micro:bit.
 - [Build A Robot Wars Buggy](https://www.kitronik.co.uk/blog/robot-buggy-part-1-build-robot-wars-buggy-introduction/) - This fun learning resource has been put together to provide teachers with an all in one design & technology challenge that you can set for your students.
-- [CPC UCreate micro:bit resources](https://warksjammy.blogspot.com/2017/04/cpc-ucreate-microbit-resources-all-in.html) - Collection of micro:bit resources made for CPC.
-- [Year 7 BBC micro:bit topic](https://bournetocode.com/projects/7-CS-micro/) - BBC micro:bit lessons from Bourne Grammar school.
 - [Kitronik Inventors Kit Resources](https://www.kitronik.co.uk/blog/kitronik-inventors-kit-resources) - A a great way to get started with programming and hardware interaction with the micro:bit. Includes 12 experiments using LEDs, motors, LDRs and capacitors.
 - [CLOQQ Activities](https://cloqq.com/newtomorrowtogether2017) - ([more](https://cloqq.com/tecnologia?id=14777677)) Activities with different difficulty levels, target age, and duration.
 - [Learn micro:bit](https://github.com/LearnToProgramRoanoke/Learn-microbit) - Code and materials for learning to program with the BBC micro:bit.
-- [Lessons Aligned to Code.org's CS Fundamentals](https://archive.microbit.org/teach/code-org-fundamentals/) - Lesson plans aligned to Code.org's Computer Science Fundamentals curriculum for primary and elementary school students.
 - [First steps in using micro:bits with PCs](https://www.computingatschool.org.uk/resource-library/2018/january/first-steps-in-using-microbits-with-pcs) - This very comprehensive article explores ways in which the micro:bit can send data via USB cable or wirelessly to PC applications.
 - [Science Experiment Lessons](https://makecode.microbit.org/courses/ucp-science) - Geared for students in middle and early high school, these Science Experiment lessons are designed help gain a greater understanding of the forces and behaviour of the physical world.
 - [micro:bit Basics for Teachers](https://www.hackster.io/kkristoff/micro-bit-basics-for-teachers-part-1-the-hardware-768229) - ([Part 2](https://www.hackster.io/monica/micro-bit-basics-for-teachers-part-2-javascript-blocks-6eaed5), [Part 3](https://www.hackster.io/monica/micro-bit-basics-for-teachers-part-3-micropython-c3fde0)) - Are you a teacher who wants to use micro:bit in your classroom, but doesn't know where to start? We'll show you how!