Update README.md

Author: learning-zone

README.md

@@ -1146,15 +1146,13 @@ Since the parts of the page were drawn into potentially multiple layers they nee
 
 ## Q. Explain about HTML Layout Engines used by browsers?
 
-|Engine |Status |Embedded in |
-|-------------|-----------------|--------------------------------------------------------------------------------------|
-|WebKit |Active |Safari browser, plus all browsers hosted on the iOS App Store |
-|Blink |Active |Google Chrome and all other Chromium-based browsers like Opera and Microsoft Edge |
-|Gecko |Active |Firefox browser and Thunderbird email client, plus forks like SeaMonkey and Waterfox |
-|KHTML |Discontinued |Konqueror browser |
-|Presto |Discontinued |formerly in the Opera browser |
-|EdgeHTML |Discontinued |formerly in the Microsoft Edge browser |
-|Trident |Discontinued |Internet Explorer browser and Microsoft Outlook email client |
+|Engine |Status |Embedded in |
+|-------------|-----------------|--------------|
+|WebKit |Active|Safari browser, plus all browsers hosted on the iOS App Store |
+|Blink |Active|Google Chrome and all other Chromium-based browsers like Opera and Microsoft Edge |
+|Gecko |Active|Firefox browser and Thunderbird email client, plus forks like SeaMonkey and Waterfox |
+|EdgeHTML |Discontinued |formerly in the Microsoft Edge browser |
+|Trident |Discontinued |Internet Explorer browser and Microsoft Outlook email client |
 
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