better readme and docs on how to build special versions, etc

[gregglind]

SOME NOTES

I want to make a new distributable build / fork

cd builds
mkdir myBuild
cd myBuild
## create files that will OVERRIDE/replace the ones in the main tree, such as `package.json`

### acutally build
make myBuild

issues:

1. replace the live files (no temp)

   why go this way, rather then prefs.json

b/c if you reset an addon, it will blow away user prefs. the ones build into package.json are default branch prefs

choose this approach IF you want to do 'big' things, like

• replace icons
• replace modules
• replace entire chunks.

(poor person's git fork / tag)

Approach 2:

(Choose if you only want different thresholds)

1. create a new / clone data/*recs.json as data/my-thresholds.json

change `recomm_list_address` to `my-thresholds.json`
change `experiment.obs1_length_tick` to 0

"trigBehavior": "tabs newtab-button -c >0",

OR 

"trigBehavior": "tabs newtab-button",  # same

-c count
-if "inverse frequency"
-f  "freq"

-c >50 -if <5

b1, ... b50... ignore
b51 maybe?
- only if at least 1 per 5 ACTIVE_TICKS on average
  so... on b51 IFF T <= 5*51 TICK UNITS
  on b52 IFF  T <= 5*52 

- ignore for a 'while' (time and/or behaviour)
- bursts?

filter() => doesn't have TST (blunt!)
trigger:
  firstOf(
    - x times in p period [ignoring first X minutes] "intense"
    - total count is > K  [iff T > t]  "total"
  )

time unit is in ACTIVE-TICKS
defined at <this pref> => 1 minute (while active)

Decyphering A ContextTrigger map

  {
    "id": "newTabShortcut",
    "priority": 1,
    "trigBehavior": "tabs newtab-button -c >50 -if <5",
    "delivContext": "tabs newtab-button",
    "featUseBehavior": "hotkey t -cmd -c >1",
    "presentationData": {
      "*": {
        "message": "You can use the <span class='key'>Ctrl</span>+<span class='key'>T</span> keyboard shortcut to open a new tab faster!",
        "rationale": "You open tabs a lot.",
        "title": "New Tab shortcut"
      },
      "doorhanger": {
        "secondaryButtonLabel": null,
        "primaryButtonLabel": "Learn more"
      }
    },
    "respCommandMap": {
      "doorhanger": {
        "primaryButton": "open url -l https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly#w_windows-tabs"
      }
    },
    "tags": ""
  },

more:

kamyar experiment.override_mode: “ec1” (sets the condition to short silence period, in-context, trigger coefficient = 1)

You are on an experimental (Beta) version of Firefox. Do you want the stable version instead?