Merge pull request #44 from hayat01sh1da/hayat01sh1da/ruby/amend-readme

[ruby] Amend README

Author: hayat01sh1da

ruby/README.md

@@ -12,7 +12,6 @@ $ bundle lock --add-checksums
 ## 3. Execution
 
 ```command
-$ cd ./ruby
 $ ruby main.rb 
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