updat README with some best practices

README.md

@@ -1,10 +1,21 @@
-Init readme
+# Off Grid Talkies
 
+Soon to be followed by off grid walkies.
 
 ## References
 
 ### antennae stuff
 
-https://learn.adafruit.com/adafruit-feather-m0-radio-with-lora-radio-module/antenna-options
+<https://learn.adafruit.com/adafruit-feather-m0-radio-with-lora-radio-module/antenna-options>
 
+### Code Practices
 
+- All macros and constants in caps: `MAX_BUFFER_SIZE`, `TRACKING_ID_PREFIX`.
+- Struct names and typedef's in camelcase: `GtkWidget`, `TrackingOrder`.
+- Functions that operate on structs: classic C style: `gtk_widget_show()`,
+  `tracking_order_process()`.
+- Pointers: nothing fancy here: `GtkWidget *foo`, `TrackingOrder *bar`.
+- Global variables: just don't use global variables. They are evil.
+- Functions that are there, but shouldn't be called directly, or have obscure uses, or
+  whatever: one or more underscores at the beginning: `_refrobnicate_data_tables()`,
+  `_destroy_cache()`.