Merge pull request #219 from codacy/update-composer-readme-file

TS-241 add procedure to update the phpmd version

Author: DMarinhoCodacy

README.md

@@ -26,6 +26,35 @@ docker run -it -v $srcDir:/src  <DOCKER_NAME>:<DOCKER_VERSION>
 
 The documentation is updated manually by checking the official documentation rules in the [PHPMD repository](https://github.com/phpmd/phpmd).
 
+## Update version
+
+1.  Install composer - (It will create the composer.phar file):
+
+```
+curl -sS https://getcomposer.org/installer | php 
+```
+2.  Update phpmd version on composer.json:
+
+```
+"require": {
+        "phpmd/phpmd": "x.xx.x"
+    }
+```
+
+3.  Run the update command to get the latest versions of the dependencies and to update the composer.lock file:
+
+```
+php composer.phar update
+```
+
+Note: If you receive a message like this:
+
+```
+Could not fetch <URL package>, please review your configured GitHub OAuth token or enter a new one to access private repos" Create a new token here: https://github.com/settings/tokens/new?scopes=&description=Composer to retrieve a token.
+```
+
+create the token and paste it to proceed.
+
 ## Test
 
 We use the [codacy-plugins-test](https://github.com/codacy/codacy-plugins-test) to test our external tools integration.