Update README

Makefile

@@ -14,7 +14,7 @@ command:
 
 path:
 	@echo "\nensure to set deno to PATH."
-	@echo '$$ export PATH=\"~/.deno/bin:$$PATH\" >> ~/.zshrc'
+	@echo '$$ export PATH="~/.deno/bin:$$PATH" >> ~/.zshrc'
 
 test:
 	deno test $(DENO_OPTIONS)

README.md

@@ -4,21 +4,67 @@
 
 Require to setup deno.
 
-https://deno.land/
+https://deno.land/manual@main/getting_started/installation
 
 ```sh
 $ git clone https://github.com/yoshikouki/tw.git && cd tw && make install
+#> ✅ Successfully installed tw
+#> /Users/yoshikouki/.deno/bin/tw
+#>
+#> ensure to set deno to PATH.
+#> $ export PATH="~/.deno/bin:$PATH" >> ~/.zshrc
+
+$ export PATH="~/.deno/bin:$PATH" >> ~/.zshrc
+```
+
+or
+
+```
+# one liner install command (WIP)
+```
+
+## Setup
+
+### Using trial keys (unsafe)
+
+```
+$ tw
+
+#> [WARNING] Your consumer_key or consumer_secret for Twitter API is not found.
+#> Sure to use trial key what is not secure because it is published.
+#> See README for details.
+#> https://github.com/yoshikouki/tw
+#>
+#> Use the trial key? [y/N]
+```
+
+### Using Your keys
+
+Get consumer_key and consumer_secret for Twitter API.
+And ensure to enable OAuth 1.0a for user authentication settings.
+
+https://developer.twitter.com/en/docs/authentication/oauth-1-0a/api-key-and-secret
+
+```
+$ CONSUMER_KEY=consumer_key CONSUMER_SECRET=consumer_secret tw
+```
+
+supported for .env file
+
+```
+$ mv .env-sample .env # and update
+$ tw
 ```
 
 ## Usage
 
-### tweet #WIP
+### tweet
 
 ```sh
 $ tw tweet by tw!!1
 ```
 
-### Check Timeline #WIP
+### Check Timeline
 
 ```sh
 $ tw -l