Guide on how to monitor decomp progress using Frogress (#30)

* Add prune feature to cli to remove duplicated entries as a workaround to https://github.com/decompals/frogress/issues/27

usage: cli.py prune [-h] project version

positional arguments:
  project     the project for which to prune the entries
  version     the slug for the version

optional arguments:
  -h, --help  show this help message and exit

* Reformat cli.py with Black

* Improve help info for new added prune option

It is used to fix duplicates caused by https://github.com/decompals/frogress/issues/27

* Create GUIDE.md

* Update GUIDE.md

* Update GUIDE.md

* Update GUIDE.md

* Update GUIDE.md

* Add link to User Guide in README

GUIDE.md

@@ -0,0 +1,122 @@
+# Guide on how to monitor decomp progress using Frogress
+
+## Overview
+
+It will guide you to onboard your decomp project to Frogress.
+
+```mermaid
+sequenceDiagram
+    autonumber
+    actor Contributor as Project contributor
+    actor Monitor as Spectator
+    Contributor->>+CI: Trigger
+    CI->>CI: Build
+    CI->>CI: Calculate progress
+    CI->>-Frogress: Upload progress
+    Note over CI,Frogress: POST /data/project:/version:/
+    Monitor->>Frogress: Fetch progress
+    Note over Monitor,Frogress: GET /data/project:/version:/?mode=all
+    Frogress->>Monitor: Return progress
+    Monitor->>Monitor: Render progress
+```
+
+*CI: Continuous Integration services including GitHub Actions, Gitlab pipelines, Travis CI and Jenkins.*
+
+## Steps
+
+1. Contact Frogress admin to create project and assign api_key
+
+2. Create schema with `cli.py`
+
+    2.1 Edit `cli.ini`
+    
+    ```ini
+    [frogress]
+    domain = https://progress.deco.mp
+    api_key = api_key
+    ```
+
+    2.2 Create version
+
+    ```bash
+    # Usage
+    ./cli.py create version -h
+    # Example
+    ./cli.py create version fireemblem8 us
+    ```
+    
+    2.3 Create category (optional)
+    
+    Default category: `default`
+
+    ```bash
+    # Usage
+    ./cli.py create category -h
+    # Example
+    ./cli.py create category fireemblem8 us default
+    ```
+
+3. Upload progress in CI
+
+    3.1 API
+    
+    ```
+    POST https://progress.deco.mp/data/project:/version:/
+    ```
+    
+    ```python
+    {
+        "api_key": "",
+        "entries": [
+            "git_hash": "",
+            "timestamp": "",
+            "categories": {
+                "default": {
+                    # metrics
+                }
+            }
+        ]
+    }
+    ```
+
+    3.2 Example
+    
+    https://github.com/FireEmblemUniverse/fireemblem8u/pull/307
+
+4. Supplement historical data (optional)
+
+    Calculate progress for historical commits and upload it to Frogress if you would like to draw historical curve.
+
+    [Example](https://github.com/laqieer/fireemblem8u/blob/master/.github/workflows/supplement-progress.yml)
+
+5. Prune duplicated data (optional)
+
+    Background: https://github.com/decompals/frogress/issues/27
+  
+    ```
+    # Usage
+    ./cli.py prune -h
+    # Example
+    ./cli.py prune fireemblem8 us
+    ```
+
+6. Fetch project data
+
+    6.1 API
+
+    ```
+    GET https://progress.deco.mp/data/project:/version:/?mode=all
+    ```
+
+    https://progress.deco.mp/data/fireemblem8/us/?mode=all
+
+    6.2 Build a website
+
+    Build a website to render progress graph using a library such as [uPlot](https://github.com/leeoniya/uPlot) and [Chart.js](https://www.chartjs.org).
+
+      - https://pikmin.dev
+      - https://axiodl.com
+      - https://sotn.xee.dev/
+      - https://laqieer.github.io/fe-decomp-portal
+      - https://angheloalf.github.io/drmario64
+      - https://angheloalf.github.io/puzzleleague64

README.md

@@ -24,9 +24,7 @@ Data: Structure: [data/](https://progress.deco.mp/data/)
 
 In order to push data for a project, you will need a site admin to create a project for you in the database and give you the project slug and API key. Please reach out to me on Github, Discord (Ethan#1106), or wherever, if you'd like to use Frogress for your project.
 
-TODO: Setup guide (how to create a schema with cli.py)
-
-TODO: Data push guide (how to write a script to push your progress to the site)
+Read [User Guide](GUIDE.md) to learn more.
 
 ## Database structure