add diagram xml and updated readme

Author: freesoft

.dockerignore

@@ -9,3 +9,4 @@ __pycache__
 .vscode
 Procfile
 *.joblib
+diagram

README.md

@@ -67,6 +67,21 @@ Parameter explanation:
 * `<oauth2 access token>` : visit [here](https://twitchapps.com/tmi/#access_token=flwh72scl6503e6bs2xnwl6g6l5jeu&scope=chat%3Aread+chat%3Aedit+channel%3Amoderate+chat_login&token_type=bearer) and click "Connec with Twitch", and use it for `<oauth2 access token>`.
 * `<channel name>` : TwitchTV channel name you'd like to deploy Moira. Use the channel name you can check from web browser's url, which is generally all lowercase regardless of what you can see on twitch user's dashboard.
 
+## How it's implemented
+
+### Initialization process
+
+<div class="mxgraph" style="max-width:100%;border:1px solid transparent;" data-mxgraph="{&quot;highlight&quot;:&quot;#0000ff&quot;,&quot;nav&quot;:true,&quot;resize&quot;:true,&quot;toolbar&quot;:&quot;zoom layers lightbox&quot;,&quot;edit&quot;:&quot;_blank&quot;,&quot;xml&quot;:&quot;&lt;mxfile modified=\&quot;2018-12-16T03:23:29.128Z\&quot; host=\&quot;www.draw.io\&quot; agent=\&quot;Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.1 Safari/605.1.15\&quot; etag=\&quot;Bzuwv_gmwOSZrs7nY9MG\&quot; version=\&quot;9.6.5\&quot; type=\&quot;github\&quot;&gt;&lt;diagram name=\&quot;Page-1\&quot; id=\&quot;74e2e168-ea6b-b213-b513-2b3c1d86103e\&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;&quot;}"></div>
+<script type="text/javascript" src="https://www.draw.io/js/viewer.min.js"></script>
+
+A few customizations are done here.<br/>
+
+* stopwords.txt modification : original stopwords.txt was from CS410 class' PyMetaPy. However, it turned out the target documents that the project was aiming, which is online chat/in-game chat/etc, include so many slang words that doesn't add much meaning in it or simply abbreviation-ish. 
+
+### How the core engine is integrated
+
+<div class="mxgraph" style="max-width:100%;border:1px solid transparent;" data-mxgraph="{&quot;highlight&quot;:&quot;#0000ff&quot;,&quot;nav&quot;:true,&quot;resize&quot;:true,&quot;toolbar&quot;:&quot;zoom layers lightbox&quot;,&quot;edit&quot;:&quot;_blank&quot;,&quot;xml&quot;:&quot;&lt;mxfile modified=\&quot;2018-12-16T03:30:02.177Z\&quot; host=\&quot;www.draw.io\&quot; agent=\&quot;Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.1 Safari/605.1.15\&quot; etag=\&quot;I3UR88yBiWHYTAMac1So\&quot; version=\&quot;9.6.5\&quot; type=\&quot;github\&quot;&gt;&lt;diagram name=\&quot;Page-1\&quot; id=\&quot;74e2e168-ea6b-b213-b513-2b3c1d86103e\&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;&quot;}"></div>
+<script type="text/javascript" src="https://www.draw.io/js/viewer.min.js"></script>
 
 ## FAQ