Added the basic structure for the first two spiders

Scrapy/spiders/Chemspider.py

@@ -0,0 +1,11 @@
+from scrapy.spider import Spider
+
+class ChemspiderSpider(Spider):
+    name = "Chemspider"
+    allowed_domains = ["chemspider.com"]
+    start_urls = (
+        'http://www.chemspider.com/',
+        )
+
+    def parse(self, response):
+        pass 

Scrapy/spiders/Wikipedia.py

@@ -0,0 +1,11 @@
+from scrapy.spider import Spider
+
+class WikipediaSpider(Spider):
+    name = "Wikipedia"
+    allowed_domains = ["wikipedia.org"]
+    start_urls = (
+        'http://www.wikipedia.org/',
+        )
+
+    def parse(self, response):
+        pass