fixed ReadMangaToday search issue (#1200)

app/src/main/java/eu/kanade/tachiyomi/source/online/english/Readmangatoday.kt

@@ -17,7 +17,7 @@ class Readmangatoday : ParsedHttpSource() {
 
     override val name = "ReadMangaToday"
 
-    override val baseUrl = "http://www.readmng.com/"
+    override val baseUrl = "https://www.readmng.com"
 
     override val lang = "en"