From 70b1af5810b8c13afc61508d82163c172bfce047 Mon Sep 17 00:00:00 2001
From: Thanos Apollo <public@thanosapollo.org>
Date: Tue, 16 Jan 2024 09:53:33 +0200
Subject: Update README

---
 README.md | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 90 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index bacb41d..cb2cb5e 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,25 @@
 
-# Gnosis 
+# Gnosis (γνῶσις)
 
 ## About
-*Gnosis is currently under development*
 
-Gnosis is a [Spaced
-Repetition](https://en.wikipedia.org/wiki/Spaced_repetition) package
-for GNU Emacs.
+Gnosis (γνῶσις), pronounced "noh-sis", meaning knowledge in Greek, is
+a [Spaced Repetition](https://en.wikipedia.org/wiki/Spaced_repetition)
+package for GNU Emacs.
+
+### Differences with other SRS
+Gnosis does not implement flashcard type review sessions where the
+user rates his own answer on an arbitrary scale. Instead implements
+"note" types that require user input. Some of these note types, like
+the `MCQ` *multiple choice question*, even allow for simulating
+real-life exams.
+
+Unlike other SRS implementations for GNU Emacs that rely on
+`org-mode`, which I've found not an ideal option for a database
+replacement. Instead utilizes an
+[sqlite](https://www.sqlite.org/index.html) database, thanks to
+[emacsql](https://github.com/magit/emacsql), enabling efficient data
+management and manipulation. 
 
 ## Installation
 ### Straight.el
@@ -29,3 +42,75 @@ $ git clone https://git.thanosapollo.org/gnosis
    (load-file "~/path/to/gnosis.el")
    (require 'gnosis)
 ```
+
+
+## Adding notes
+
+Creating notes for gnosis can be done with a simple
+`M-x gnosis-add-note`
+
+
+Everything is done through the mini-buffer. My personal workflow takes
+advantage of that by not really leaving `gnosis-add-note` prompt until
+I finish studying a chapter/section, using
+[pdf-tools](https://github.com/vedang/pdf-tools "Emacs pdf-tools") or
+[nov.el](https://depp.brause.cc/nov.el/ "Emacs nov.el").
+
+### Creating cloze type notes
+Cloze type note questions are formatted similarly to Anki's syntax, like so:
+> {c1:Cyproheptadine} is a(n) {c2:5-HT2} receptor antagonist used to treat {c2:serotonin syndrome}
+
+
+*NOTE*: You can also format clozes like Anki if you so prefer; e.g
+`{{c1::Cyproheptadine}}`
+
++ For each `cX`-tag there will be created a cloze type note, the above
+  example creates 2 cloze type notes.
+
++ Each `cX` tag can have multiple clozes, but each cloze must be a
+  *UNIQUE* word (or a unique combination of words) in given note.
+
+## Customizing gnosis algorithm
+
+### `gnosis-algorithm-interval`
+
+This is a list of 2 numbers, for the first 2 intervals after a
+successful review. For example:
+
+``` emacs-lisp
+(setq gnosis-algorithm-interval '(1 3))
+```
+
+After first successfully reviewing a note, you will see it again
+tomorrow, if you successfully review said note again, the next review
+will be after 3 days.
+
+### `gnosis-algorithm-ef`
+
+This is gnosis "easiness factor", it's basically a list that consists
+of 3 items. The first item is the increase factor, used to increase
+the easiness factor upon successful review. Second item refers to the
+decrease factor, used to decrease the easiness factor upon an
+unsuccessful review. The third item is the initial total easiness
+factor, used to calculate the next interval.
+
+The basic's of how this is used is that it's being multiplied with the
+last interval, e.g if you last reviewed a note 6 days ago, and the
+easiness factor of this note is 2.0, your next interval would be 6 *
+2.0. The next easiness will be 2.0 + increase-factor as well.
+
+For example:
+
+``` emacs-lisp
+(setq gnosis-algorithm-ef '(0.3 0.3 1.3))
+```
+
+### `gnsois-algorithm-ff`
+
+This is the value of gnosis forgetting factor(ff), it needs to be a floating number below 1. The 101 is that it's used to calculate the next interval upon an unsuccessful review, by being multiplied with last interval, if for a note with a value of last-interval of 6 days and a ff of 0.5, upon an unsuccessful review the next interval will be 6 * 0.5
+
+For example:
+
+``` emacs-lisp
+(setq gnosis-algorithm-ff 0.5)
+```
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