Trim trailing empty line from README.md (#126)

Author: Denis-Averin

Makefile

@@ -20,6 +20,8 @@ format:
 format-doc:
 	# Remove trailing white space
 	find . -iname "*.md" -exec sed -i -e 's_[[:space:]]*$$__' {} \;
+	# Trim trailing empty line
+	sed -i -e '$${/^$$/d;}' README.md
 
 .PHONY: test
 test: nuget