add scrapy installing guide

Xyntax · Xyntax · commit 969e1d899eb2 · 2017-02-28T15:54:25.000+08:00
diff --git a/README.md b/README.md
@@ -27,6 +27,8 @@ Install
 2. `cd FileSensor`
 3. `pip3 install -r requirement.txt`
 
+* [Scrapy official installation guide](http://scrapy.readthedocs.io/en/latest/intro/install.html)
+
 Usage
 -----
 ```
diff --git a/requirements.txt b/requirements.txt
@@ -1,2 +1,8 @@
 scrapy
 docopt
+twisted
+lxml
+parsel
+w3lib
+cryptography
+pyopenssl

-Original file line number
+Diff line change
@@ @@ -1,2 +1,8 @@ @@
 scrapy
 docopt
 +twisted
 +lxml
 +parsel
 +w3lib
 +cryptography
 +pyopenssl