✨ Add "sign in via github" button

templates/base/head_navbar.tmpl

@@ -194,6 +194,9 @@
 			<a class="item{{if .PageIsSignIn}} active{{end}}" rel="nofollow" href="{{AppSubUrl}}/user/login{{if not .PageIsSignIn}}?redirect_to={{.CurrentURL}}{{end}}">
 				{{svg "octicon-sign-in"}} {{.locale.Tr "sign_in"}}
 			</a>
+			<a class="item" rel="nofollow" href="{{AppSubUrl}}/user/oauth2/github?redirect_to={{if not .PageIsSignIn}}?redirect_to={{.CurrentURL}}{{end}}">
+				{{svg "octicon-mark-github"}} Sign In via Github
+			</a>
 		</div><!-- end anonymous right menu -->
 	{{end}}
 </div>

templates/home.tmpl

@@ -32,9 +32,9 @@
 		<div class="twelve wide center aligned centered column">
 			<div class="ui middle grid">
 				<div class="sixteen wide center aligned centered row">
-					<a class="ui green button" href="/explore">Explore</a>
+					<a class="ui green button" href="{{AppSubUrl}}/explore">Explore</a>
 					<div style="width: 2em;"></div>
-					<a class="ui green button" href="/adri326">My Profile</a>
+					<a class="ui green button" href="{{AppSubUrl}}/adri326">My Profile</a>
 				</div>
 			</div>
 		</div>
@@ -50,7 +50,7 @@
 
 			<div class="ui middle grid">
 				<div class="sixteen wide center aligned centered row">
-					<a class="ui button" href="/user/oauth2/github">Login via Github</a>
+					<a class="ui button" href="{{AppSubUrl}}/user/oauth2/github">Login via Github</a>
 				</div>
 			</div>