update instructions for 1.5.0

UPDATE.md

@@ -1,16 +1,47 @@
-## 1.3.0 -> 1.4.0
+## 1.4.x -> 1.5.0
+
+pull the update as usual: `git pull`  
+run `pip install -r requirements.txt` again to install newly required packages  
+make the following changes in your config.json file:  
+```diff
+...
+    "instance": {
+        ...
+-        "image": "/static/img/ca_screenshot.png",
++        "image": "/static/icons/favicon/android-chrome-192x192.png",
+        ...
+    },
++    "style": {
++        "accentLight": "#6345d9",
++        "accentDark": "#7259d9",
++        "bgLight": "#ffffff",
++        "bgDark": "#202020",
++        "navStyle": "underline",
++        "tintColors": false,
++        "infoBoxLayout": "column"
++    },
+...
+```
+
+## 1.3.0 -> 1.4.x
 first, pull the update from the repository: `git pull`  
 second, you'll need to update the database schema as it was changed slightly in this update, run these queries in mysql/mariadb console:  
-```USE <catask database name>;```  
-```ALTER TABLE answers CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;```  
-```ALTER TABLE questions CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;```  
-after that, open your config file and add `"rules": ""` to `"instance"`, like this:  
 ```
+USE <catask database name>;
+```  
+```
+ALTER TABLE answers CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
+```  
+```
+ALTER TABLE questions CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
+```  
+after that, open your config file and add `"rules": ""` to `"instance"`, like this:  
+```diff
 ...
     "instance": {
 		...
         "fullBaseUrl": "https://catask.localhost",
-		"rules": ""
++		"rules": ""
     },
 ...
 ```