Added documentation

readme.md

@@ -4,4 +4,68 @@ To utilize this class, first import MysqlDb.php into your project, and require i
 <code>
 require_once('MysqlDb.php');
 </code>
-</pre>
+</pre>
+
+After that, create a new instance of the class.
+
+<pre>
+<code>
+$Db = new MysqlDb('host', 'username', 'password', 'databaseName');
+</code>
+</pre>
+
+Next, prepare your data, and call the necessary methods. 
+
+<h3> Insert Query </h3>
+<pre>
+<code>
+<?php
+$insertData = array(
+   'title' => 'Inserted title',
+    'body' => 'Inserted body'
+);
+
+if ( $Db->insert('posts', $insertData) ) echo 'success!';
+
+</code>
+</pre>
+
+<h3> Select Query </h3>
+
+<pre>
+<code>
+$results = $Db->get('tableName', 'numberOfRows-optional');
+print_r($results); // contains array of returned rows
+</code>
+</pre>
+
+<h3> Update Query </h3>
+
+<pre>
+<code>
+$updateData = array(
+   'fieldOne' => 'fieldValue',
+    'fieldTwo' => 'fieldValue'
+);
+$Db->where('id', int);
+$results = $Db->update('tableName', $updateData);
+</code>
+</pre>
+
+<h3> Delete Query </h3>
+
+<pre>
+<code>
+$Db->where('id', integer);
+if ( $Db->delete('posts') ) echo 'successfully deleted'; 
+</code>
+</pre>
+
+<h3> Generic Query Method </h3>
+
+<pre>
+<code>
+$results = $Db->query('SELECT * from posts');
+print_r($results); // contains array of returned rows
+</code>
+</pre>