Documentation was added

Author: TikhomirovSergey

docs/How-to-propose-a-PR.md

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+...under construction

docs/How-to-report-an-issue.md

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+... under construction

docs/Installing-the-project.md

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+[Download the jar from Maven](http://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22io.appium%22%20AND%20a%3A%22java-client%22) or add the following to pom.xml:
+
+```
+<dependency>
+  <groupId>io.appium</groupId>
+  <artifactId>java-client</artifactId>
+  <version>3.4.1</version>
+</dependency>
+```
+
+It currently depends on selenium-java 2.53.0. If it is necessary to use another version of Selenium then you can configure pom.xml as follows:
+
+```
+<dependency>
+  <groupId>io.appium</groupId>
+  <artifactId>java-client</artifactId>
+  <version>3.4.1</version>
+  <exclusions>
+    <exclusion>
+      <groupId>org.seleniumhq.selenium</groupId>
+      <artifactId>selenium-java</artifactId>
+    </exclusion>
+  </exclusions>
+</dependency>
+
+<dependency>
+  <groupId>org.seleniumhq.selenium</groupId>
+  <artifactId>selenium-java</artifactId>
+  <version>${selenium.version.you.require}</version>
+</dependency>
+```

docs/Note-for-developers.md

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+### Coding Standards
+
+Appium java-client strictly follows [Google Java Style](http://google-styleguide.googlecode.com/svn/trunk/javaguide.html) as a coding standards. Contributors are requested to follow this by configuring in their IDE's Editor Code style,
+
+* Clone [Google Style Guide](https://github.com/google/styleguide.git) from git
+
+**Intellij IDEA** user's can configure this way,
+`Files -> Other Settings -> Default Settings ->Editor -> Code Style -> Manage -> Manage -> Import -> eclipse-java-google-style.xml (Downloaded from Google Style Guide)-> Apply`
+
+**Eclipse IDE** user's can configure this way,
+`Preferences -> Java -> Code Style -> Formatter -> Import -> eclipse-java-google-style.xml (Downloaded from Google Style Guide)-> Apply`
+
+Reformat your code before raising a Pull Request.