docs: espressif: fix formatting of markdown

[utzig]

Fix documentation issues for the rendering of the Espressif README page. No content is changed with this commit, but formatting and line breaks are set to approximately 100 columns.

[utzig]

Supersedes #1789, tested locally...

[almir-okato]

LGTM

Thanks @utzig, I tried to test it locally but couldn't build properly using Ruby Gems (tried with and without GitHub Pages Docker image), would be possible to add the instructions somewhere in the project?

[utzig]

LGTM

Thanks @utzig, I tried to test it locally but couldn't build properly using Ruby Gems (tried with and without GitHub Pages Docker image), would be possible to add the instructions somewhere in the project?

https://docs.github.com/en/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll

^ Is this missing something?

I submitted PR #1798 which adds emoji support, missing here https://docs.mcuboot.com/readme-espressif.html#building-bootloader-with-flash-encryption. Also adds webrick required for ruby > 3.

I tested locally with ruby 3.0.6 (shipped with my distro) and 2.7.4 (used by github pages) which I manage with rbenv. rubygems comes with disto as well; install the required bundler with: gem install bundler -v 1.17.2, and run bundle install. I never use docker for ruby/python stuff...

[almir-okato]

LGTM
Thanks @utzig, I tried to test it locally but couldn't build properly using Ruby Gems (tried with and without GitHub Pages Docker image), would be possible to add the instructions somewhere in the project?

https://docs.github.com/en/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll

^ Is this missing something?

I submitted PR #1798 which adds emoji support, missing here https://docs.mcuboot.com/readme-espressif.html#building-bootloader-with-flash-encryption. Also adds webrick required for ruby > 3.

I tested locally with ruby 3.0.6 (shipped with my distro) and 2.7.4 (used by github pages) which I manage with rbenv. rubygems comes with disto as well; install the required bundler with: gem install bundler -v 1.17.2, and run bundle install. I never use docker for ruby/python stuff...

Yes I tried to build using those instructions from docs.github.com.
But with the updates from your PR #1798, it worked fine, so I guess the problem was probably related to plugins version from Gemfile.