Fixing single API

Author: kiwicopple

README.md

@@ -8,5 +8,6 @@
 https://api.pollygot.com/v1/posts?tenant={TENANT_ID}
 
 # Request a single post
-https://api.pollygot.com/v1/posts/{post-slug}
+# Note that you still have to pass the Tenant ID (different tenants can have the same slug for their posts)
+https://api.pollygot.com/v1/posts/{post-slug}?tenant={TENANT_ID}
 ```