site: cookbook: start collecting journal entries

[ci skip]

Shake.hs

@@ -137,6 +137,7 @@ main = do
          "site/account-aliases.md"
         ,"site/account-separator.md"
         ,"site/csv-import.md"
+        ,"site/entries.md"
         ]
 
       -- cookbook pages combined, ready for web output by hakyll

site/docs.md

@@ -89,6 +89,7 @@ Practical recipes on one page, including:
 
 <div style="padding-left:0em;">
 
+[Common journal entries](entries.html)\
 [How to read CSV files](csv-import.html)\
 [How to use account aliases](account-aliases.html)\
 [How to use another account separator character](account-separator.html)\

site/entries.md

@@ -0,0 +1,12 @@
+# Common Journal Entries
+
+Example hledger journal entries for various kinds of transaction.
+ 
+A purchase:
+```journal
+2017/1/26 market
+  expenses:food    $10
+  assets:cash
+```
+
+Please add more.