Add some instructions for generating reports with hledger.

ADMINISTRATION.md

@@ -21,3 +21,11 @@ The invoices should be generated in `invoices/sent/2022/`.
 The ruby script can be edited to change the start of the range of invoice numbers and to generate the output in a different directory.
 
 The data used to generate the invoices is in `members.csv`.
+
+## Running reports
+
+We keep a plain-text ledger of transactions in ~cotech.journal~. Using the [hledger](https://hledger.org/) tool we can generate reports. A typical one is the (financial) year-by-year break down of income and expenses which we report occasionally on the [discourse forum](https://community.coops.tech/c/cotech/fund/25).
+
+```
+hledger -f cotech.journal is -p "yearly from 2019-04-06"
+```

cotech.journal

@@ -239,3 +239,70 @@
 2021-12-31 Service Charge
     Expenses:BankCharges           18.00
     Assets:Unity                  -18.00
+
+2022-04-28 CO-OPERATIVE WEB LIMITED
+    Assets:Unity                                     416
+    Revenue:Subscriptions:CooperativeWeb            -416
+
+2022-05-03 B/P to: Blake Hose Produc
+    Expenses:Infrastructure          104.05
+    Assets:Unity                    -104.05
+
+2022-05-03 CODE-OPERATIVE LTD
+    Assets:Unity                                    364
+    Revenue:Subscriptions:CodeOperative            -364
+
+2022-05-03 GO FREE RANG
+    Assets:Unity                                  156
+    Revenue:Subscriptions:GoFreeRange            -156
+
+2022-05-09 WE ARE OPEN LIMITED
+    Assets:Unity                                208
+    Revenue:Subscriptions:WeAreOpen            -208
+
+2022-05-10 CO-OPERATIVE WEB LIMITED
+    Assets:Unity                                     208
+    Revenue:Subscriptions:CooperativeWeb            -208
+
+2022-05-11 AGILE COLLECTIVE L
+    Assets:Unity                                      520
+    Revenue:Subscriptions:AgileCollective            -520
+
+2022-05-13 AUTONOMIC CO-OP LTD
+    Assets:Unity                                208
+    Revenue:Subscriptions:Autonomic            -208
+
+2022-05-25 Data Content Reach Cooperative LLP
+    Assets:Unity                                                  104
+    Revenue:Subscriptions:DataContentReachCooperative            -104
+
+2022-05-31 DOT PROJECT LIMITED
+    Assets:Unity                                 364
+    Revenue:Subscriptions:DotProject            -364
+
+2022-05-31 Service Charge
+    Expenses:BankCharges           18.00
+    Assets:Unity                  -18.00
+
+2022-07-30 Service Charge
+    Expenses:BankCharges           18.00
+    Assets:Unity                  -18.00
+
+2022-08-10 OUTLANDISH CO-OPERATIVE LIMITED
+    Assets:Unity                              416.00
+    Revenue:Subscriptions:Outlandish         -416.00
+
+2022-08-03 CO-OPERATIVE WEB LIMITED
+    Assets:Unity                                     208
+    Revenue:Subscriptions:CooperativeWeb            -208
+
+2022-07-26 B/P to: Webarch Co-operati
+    Expenses:Infrastructure:DomainName              44.75
+    Expenses:Infrastructure:Discourse                750
+    Expenses:Infrastructure:MediaWiki                 750
+    Expenses:Infrastructure:Discount
+    Assets:Unity                                 -1538.49
+
+2022-07-26 B/P to: Friends of the Ear
+    Expenses:Gatherings:Birmingham          720.60
+    Assets:Unity                           -720.60

members.csv

@@ -17,4 +17,6 @@ josef@uniteddiversity.coop,United Diversity,4 Melville Square//East Street//Brid
 hello@weareopen.coop,We Are Open,3 South Terrace//Morpeth//Northumberland//NE61 1DZ,4
 support@webarch.net,Webarch Co-operative Limited,68a John Street//Sheffield S2 4QU//United Kingdom,3
 ian@mediaco-op.net,media co-op,406 White Studios//62 Templeton St//Glasgow//G40 1DA,8
-hello@datacontentreach.co,Data Content Reach,Glossop Gasworks//Arundel Street//Glossop//SK138HZ,2
+hello@datacontentreach.co,Data Content Reach,Glossop Gasworks//Arundel Street//Glossop//SK138HZ,2
+mariano@open-ecommerce.org,open-ecommerce.org Limited,Unit 23A//Iliffe Yard//SE17 3QA//London,2
+gemma@commonknowledge.coop,Common Knowledge Co-Operative Ltd,Pelican House//138-148 Cambridge Heath Road//London//E1 5QJ,4