Updated conversion URL path

Author: jonas-jasas

src/com/convertapi/ConvertApi.java

@@ -30,6 +30,7 @@ public static CompletableFuture<ConversionResult> convert(String fromFormat, Str
         CompletableFuture<ConversionResponse> completableResponse = CompletableFuture.supplyAsync(() -> {
             @SuppressWarnings("SpellCheckingInspection")
             HttpUrl url = Http.getUrlBuilder(config)
+                    .addPathSegment("convert")
                     .addPathSegment(fromFormat)
                     .addPathSegment("to")
                     .addPathSegment(toFormat)