Fix #20897

 Test if git username and password are entered before pushing commit

src/vs/workbench/parts/git/electron-main/index.html

@@ -122,8 +122,8 @@
 		<section id="main">
 			<p id="host"></p>
 			<form id="form">
-				<p><input type="text" id="username" placeholder="Username"/></p>
-				<p><input type="password" id="password" placeholder="Password"/></p>
+				<p><input type="text" id="username" placeholder="Username" required/></p>
+				<p><input type="password" id="password" placeholder="Password" required/></p>
 				<p id="buttons">
 					<input id="ok" type="submit" value="OK" />
 					<input id="cancel" type="button" value="Cancel" />
@@ -135,4 +135,4 @@
 			</footer>
 		</section>
 	</body>
-</html>
\ No newline at end of file
+</html>