Create README.md

Author: enryold

README.md

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+# yii2-apidoc-generator
+Yii2 Apidoc.js generator
+
+Yii2 Apidoc.js generator is a little helper that generate Apidoc.js comments for your yii2 RESTFul API actions on-demand. 
+Just call your API's endpoints to generate the comment files. Then run apidoc scripts to generate your documentation.
+
+
+PREREQUISITES
+-------------
+
+Install Apidoc.js (http://apidocjs.com/)
+
+```
+npm install apidoc -g
+```
+
+
+INSTALL APIDOC GENERATOR WITH COMPOSER
+---------------------------------------
+
+```
+ "eold/yii2-apidoc-generator": "^1.0."
+ ```
+ 
+
+CONFIGURE 
+---------
+
+Put apidoc-generator in your Yii2 config file components
+
+```
+'docGenerator' =>[
+            'class' => 'eold\apidocgen\src\ApiDocGenerator',
+            'isActive'=>true,                      // Flag to set plugin active
+            'versionRegexFind'=>'/(\w+)(\d+)/i',   // regex used in preg_replace function to find Yii api version format (usually 'v1', 'vX') ... 
+            'versionRegexReplace'=>'${2}.0.0',     // .. and replace it in Apidoc format (usually 'x.x.x')
+            'docDataAlias'=>'@runtime/data_path'   // Folder to save output. make sure is writable. 
+        ],
+```
+        
+Then, add apidoc-generator in bootstrap section 
+
+```
+'bootstrap' => ['log', 'v1', 'docGenerator'],
+```
+
+USAGE
+---------
+
+Everytime you call an endpoint of your API's, ApiDocGenerator try to writes the corresponding Apidoc.js comment file.
+If an output file was already generated it will NOT be overwrited. You have to delete it and call the endpoint again.
+
+Then, you have to call Apidoc.js to generate the doc
+
+```
+apidoc -i <PATH_TO_YII2_APIDOC_GENERATOR_DATA_ALIAS> -o <PATH_TO_YOUR_GENERATED_DOCS>
+```
+
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