add key/value info to ini example

README.md

@@ -1242,7 +1242,7 @@ ifconfig | jc --ifconfig -p          # or:  jc -p ifconfig
   }
 ]
 ```
-### INI files
+### INI and plain key/value pair files
 ```bash
 cat example.ini
 ```
@@ -1281,6 +1281,31 @@ cat example.ini | jc --ini -p
   }
 }
 ```
+```bash
+cat keyvalue.txt
+```
+```
+# this file contains key/value pairs
+name = John Doe
+address=555 California Drive
+age: 34
+; comments can include # or ;
+# delimiter can be = or :
+# quoted values have quotation marks stripped by default
+# but can be preserved with the -r argument
+occupation:"Engineer"
+```
+```bash
+cat keyvalue.txt | jc --ini -p
+```
+```json
+{
+  "name": "John Doe",
+  "address": "555 California Drive",
+  "age": "34",
+  "occupation": "Engineer"
+}
+```
 ### iptables
 ```bash
 iptables --line-numbers -v -L -t nat | jc --iptables -p          # or:  jc -p iptables --line-numbers -v -L -t nat