Minor improvements

Author: introfog

src/main/java/com/github/introfog/gitwave/controller/main/ExecutionController.java

@@ -86,7 +86,7 @@ public void writeErrorOutput(String line) {
     }
 
     public void writeFinishMessage() {
-        commonWritingPart("\nPress Enter or Esc to close the window...", "-fx-fill: green");
+        commonWritingPart("\nPress Enter or Esc to close the tab...", "-fx-fill: gray");
         isExecutionFinished = true;
     }
 

src/main/resources/com/github/introfog/gitwave/view/about.fxml

@@ -40,7 +40,7 @@
             </Label>
             <HBox>
                <children>
-                  <Label text="GitWave is a open source project:" wrapText="true">
+                  <Label text="GitWave is an open source project:" wrapText="true">
                      <HBox.margin>
                         <Insets />
                      </HBox.margin>