Merge pull request #43 from hayat01sh1da/hayta01sh1da/ruby/update-readme

[ruby] Update README

Author: hayat01sh1da

ruby/README.md

@@ -23,3 +23,41 @@ asc
 Start exporting JSON data in ./json/settings.json
 Done export JSON data in ./json/settings.json 🎉
 ```
+
+## 4. Unit Test
+
+```command
+$ ruby test/application_test.rb 
+Run options: --seed 44849
+
+# Running:
+
+.....
+
+Finished in 0.106035s, 47.1541 runs/s, 75.4466 assertions/s.
+
+5 runs, 8 assertions, 0 failures, 0 errors, 0 skips
+```
+
+## 5. Static Code Analysis
+
+```command
+$ rubocop
+Inspecting 6 files
+......
+
+6 files inspected, no offenses detected
+```
+
+## 6. Type Checks
+
+```command
+$ rbs-inline --output sig/generated/ .
+🎉 Generated 4 RBS files under sig/generated
+$ steep check
+# Type checking files:
+
+........
+
+No type error detected. 🧉
+```