Accessibility features for markdown files (#249)

Add accessibility features based on: https://github.blog/2023-10-26-5-tips-for-making-your-github-profile-page-accessible/

---------

Co-authored-by: Frank Hinek <[email protected]>

CODE_OF_CONDUCT.md

@@ -118,19 +118,10 @@ community.
 
 ## Attribution
 
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.1, available at
-[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org),
+version 2.1, available on [the contributor Convenant website](https://www.contributor-covenant.org/version/2/1/code_of_conduct.html).
 
 Community Impact Guidelines were inspired by
-[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+[Mozilla's code of conduct enforcement ladder](https://github.com/mozilla/inclusion/blob/master/code-of-conduct-enforcement/consequence-ladder.md).
 
-For answers to common questions about this code of conduct, see the FAQ at
-[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
-[https://www.contributor-covenant.org/translations][translations].
-
-[homepage]: https://www.contributor-covenant.org
-[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
-[Mozilla CoC]: https://github.com/mozilla/diversity
-[FAQ]: https://www.contributor-covenant.org/faq
-[translations]: https://www.contributor-covenant.org/translations
+For answers to common questions about this code of conduct, see the [FAQs on the Contributor Covenant website](https://www.contributor-covenant.org/faq). Translations are available on the [translations page](https://www.contributor-covenant.org/translations).

CONTRIBUTING.md

@@ -26,7 +26,7 @@ As we work our way towards a beta release and beyond, we'll be creating more foc
 
 These issues are excellent canditates for contribution and we'd be thrilled to get all the help we can get! You can
 take a look at all of the Issues that match the labels above
-[here](https://github.com/TBD54566975/web5-js/issues?q=is%3Aopen+label%3A%22help+wanted%22%2C%22good+first+issue%22%2C%22documentation%22%2C%22bug%22+).
+[on the Issues tab](https://github.com/TBD54566975/web5-js/issues?q=is%3Aopen+label%3A%22help+wanted%22%2C%22good+first+issue%22%2C%22documentation%22%2C%22bug%22+).
 
 We suggest the following process when picking up one of these issues:
 
@@ -40,7 +40,7 @@ We suggest the following process when picking up one of these issues:
 
 ### Discussions
 
-Design discussions and proposals take place on our Web5 [discord](https://discord.com/channels/937858703112155166/969272658501976117) channel.
+Design discussions and proposals take place on our Web5 [Discord](https://discord.com/channels/937858703112155166/969272658501976117) channel.
 
 We advocate an asynchronous, written debate model - so write up your thoughts and invite the community to join in!
 
@@ -94,7 +94,7 @@ to your valuable work:
   rebase atop the upstream `main` branch. This will limit the potential for merge
   conflicts during review, and helps keep the audit trail clean. A good writeup for
   how this is done is
-  [here](https://medium.com/@slamflipstrom/a-beginners-guide-to-squashing-commits-with-git-rebase-8185cf6e62ec), and if you're
+ [this beginner's guide to squashing commits](https://medium.com/@slamflipstrom/a-beginners-guide-to-squashing-commits-with-git-rebase-8185cf6e62ec)
   having trouble - feel free to ask a member or the community for help or leave the commits as-is, and flag that you'd like
   rebasing assistance in your PR! We're here to support you.
 - Open a PR in the project to bring in the code from your feature branch.

README.md

@@ -9,7 +9,7 @@
 
 Making developing with Web5 components at least 5 times easier to work with.
 
-> ⚠️ WEB5 JS SDK IS CURRENTLY IN TECH PREVIEW ⚠️
+> :warning: WEB5 JS SDK IS CURRENTLY IN TECH PREVIEW :warning:
 
 The SDK is currently still under active development, but having entered the Tech Preview phase there is now a drive to avoid unnecessary changes unless backwards compatibility is provided. Additional functionality will be added in the lead up to 1.0 final, and modifications will be made to address issues and community feedback.
 
@@ -46,7 +46,7 @@ possible.
 
 Interested in contributing instantly? You can make your updates directly without cloning in the running CodeSandbox environment.
 
-[![Edit in CodeSandbox](https://assets.codesandbox.io/github/button-edit-lime.svg)](https://codesandbox.io/p/github/TBD54566975/web5-js/main)
+[![Button to click and edit code in CodeSandbox](https://assets.codesandbox.io/github/button-edit-lime.svg)](https://codesandbox.io/p/github/TBD54566975/web5-js/main)
 
 ## Installation