Update proxy and uninstall sections at chrome/no-carga-[...]

- Add steps to the proxy section for Windows 10 and Linux.
- Add warning to suggest syncing Chrome before uninstalling Chrome and
  deleting all its data.
- Add pymdownx.tabbed and pymdownx.superfences MD extensions.

Change-Id: Icd2071d645360bf9924ab912506f317f27b6e1f6
3 files changed
tree: 9d8bc682ba4ca275d475a2764e785868a30ab812
  1. .github/
  2. .gitignore
  3. docs/
  4. mkdocs.yml
  5. requirements.txt