website: Add design document and project plan to website

wobsite/Makefile

@@ -2,7 +2,7 @@
 
 build:
 	jekyll build
-	chmod -R 744 _site/
+	chmod -R 755 _site/
 
 deploy:
 	make build

wobsite/_config.yml

@@ -32,6 +32,8 @@ navigation:
     url: /
   - text: Team Members
     url: /members.html
+  - text: Documents
+    url: /documents.html
   - text: Quadcopter
     url: /quadcopter.html
   - text: Ground Station

wobsite/documents.md

+---
+layout: default
+permalink: documents
+---
+
+# Documents
+
+[Design Document 1](files/DesignDocument1.docx.pdf)
+
+[Project Plan 1](files/ProjectPlan1Template.docx.pdf)
\ No newline at end of file