Added missing docs and organized sample files (#97)

Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: R11/release11-tools-web#97

Samples/xslt/sampleXML.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<l:library xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.release11.com" xmlns:l="http://www.release11.com/library" xmlns:p="http://www.release11.com/person" xmlns:b="http://www.release11.com/book">
+    <l:libraryName>City library</l:libraryName>
+    <l:libraryID>345123</l:libraryID>
+    <l:readerList>
+        <p:person>
+            <p:readerID>7321</p:readerID>
+            <p:name>Adam</p:name>
+            <p:surname>Choke</p:surname>
+        </p:person>
+        <p:person>
+            <p:readerID>5123</p:readerID>
+            <p:name>Lauren</p:name>
+            <p:surname>Wong</p:surname>
+        </p:person>
+    </l:readerList>
+    <l:bookList>
+        <b:book>
+            <b:bookID>6422</b:bookID>
+            <b:title>Harry Potter</b:title>
+            <p:readerID>7542</p:readerID>
+        </b:book>
+        <b:book>
+            <b:bookID>1234</b:bookID>
+            <b:title>Macbeth</b:title>
+            <p:readerID>5123</p:readerID>
+        </b:book>
+        <b:book>
+            <b:bookID>9556</b:bookID>
+            <b:title>Romeo and Juliet</b:title>
+        </b:book>
+    </l:bookList>
+</l:library>