Update README-RU.md to match the English version. #56

	name: Check README Suffixes

	on:
	pull_request:
	paths:
	- 'README-*'

	jobs:
	check-readme-suffixes:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 3.0

	- name: Install dependencies
	run: \|
	gem install nokogiri

	- name: Check README suffixes
	run: \|
	# Scrape ISO 639 language codes from the Wiki page
	wget -qO- https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes \| \
	nokogiri -e 'puts $_.css(".wikitable td:nth-child(2)").map(&:text)' \| \
	sed -nr '/^.{0,2}$/p' \| # Grab only two letter values
	tr '[:lower:]' '[:upper:]' > iso639.txt # Covert letters to uppercase

	# Get list of README file names
	readme_suffixes=$(ls README-* \| sed 's/README-//g; s/.md//g')

	# Check if README suffixes are valid ISO 639 language codes
	for suffix in $readme_suffixes; do
	if ! grep -qw "$suffix" iso639.txt; then
	echo "Error: Invalid README suffix found: $suffix"
	exit 1
	fi
	done

	echo "All README suffixes are valid ISO 639 language codes."

	# Add more steps for your existing workflow, e.g., running tests or other checks

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