Add more Elixir tools

.gitignore

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+.idea/

README.md

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 # Wiki
 
+Useful links for programming
 
 ## General
 - [Keep a changelog](http://keepachangelog.com/)
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 ### General
 - [ExDoc is a documentation generation tool for Elixir](https://hex.pm/packages/ex_doc)
 - [A static code analysis tool with a focus on code consistency and teaching](https://hex.pm/packages/credo)
+- [A code-style enforcer that will just FIFY instead of complaining](https://hex.pm/packages/styler)
 - [Mix tasks to simplify use of Dialyzer in Elixir project](https://hex.pm/packages/dialyxir)
 - [Coverage report tool for Elixir with coveralls.io integration](https://hex.pm/packages/excoveralls)
 - [Security-focused static analysis for Elixir & the Phoenix framework](https://hex.pm/packages/sobelow)
+- [Visualize Erlang/Elixir Nodes On The Command Line](https://hex.pm/packages/observer_cli)
+- [A pluggable storybook for your Phoenix components](https://hex.pm/packages/phoenix_storybook)
+- [MixAudit provides a `mix deps.audit` task to scan a project Mix dependencies for known Elixir security vulnerabilities](https://hex.pm/packages/mix_audit)
 
 ### Testing
 - [Unit testing framework for Elixir](https://hexdocs.pm/ex_unit/ExUnit.html)
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 - [Data generation and property-based testing for Elixir](https://hex.pm/packages/stream_data)
 - [Concurrent browser tests](https://hex.pm/packages/wallaby)
 - [library for writing integration tests and browser automation](https://hex.pm/packages/hound)
+- [Power Assert in Elixir. Shows evaluation results each expression](https://hex.pm/packages/power_assert)
+- [Lightweight server-side integration test functions for Phoenix. Optimized for Elixir Pipes and the existing Phoenix.ConnTest framework to emphasize both speed and readability](https://hex.pm/packages/phoenix_integration)
 
+### Nerves
+- [Learn from Nerves apps written by experienced developers](https://github.com/szTheory/real-world-nerves)
+- [Toolshed improves the Elixir shell experience by adding a number of IEx helpers](https://hex.pm/packages/toolshed)
+    - ping
+    - top
+    - cwd
+    - tree
+    - ...