📝 Remove -e option

Now rubydown has default template

Author: kozo2

README.md

@@ -17,6 +17,7 @@ https://github.com/pystitch/stitch
 ## Install
 
 ```
+apt install gnuplot # When you use numo-gnuplot in your workflow markdown
 gem install specific_install
 gem specific_install https://github.com/sciruby-jp/rubydown
 ```
@@ -27,18 +28,5 @@ gem specific_install https://github.com/sciruby-jp/rubydown
 gem install rumale rdatasets
 git clone git://github.com/sciruby-jp/rubydown
 cd rubydown/examples
-/usr/local/bundle/bin/rubydown -i rumale.md -e /usr/local/bundle/gems/rubydown-0.1.0/templates/template.html.erb -o rumale-test.html
-```
-
-
-## Quick Start (with Docker)
-
-```
-docker run -it -v c:/Users:/data ruby bash
-gem install specific_install
-gem specific_install https://github.com/sciruby-jp/rubydown.git
-apt update
-apt install gnuplot
-/usr/local/bundle/bin/rubydown -i /usr/local/bundle/gems/rubydown-0.1.0/examples/data_science.md -e /usr/local/bundle/gems/rubydown-0.1.0/templates/template.html.erb -o /data/YOURNAME/data_science.html
-cp data_science.md /data/YOURNAME/data_science.md
+rubydown -i rumale.md -o rumale.html
 ```