Fix website references.

Add .vscode to gitignore

Author: leerho

src/main/java/org/apache/datasketches/quantilescommon/GenericInequalitySearch.java

@@ -41,7 +41,7 @@
  * <p>Given a sorted array of values <i>arr[]</i> and a search key value <i>v</i>, the algorithms for
  * the searching criteria are given with each enum criterion.</p>
  *
- * @see <a href="https://datasketches.apache.org/docs/Quantiles/SketchingQuantilesAndRanksTutorial.html">
+ * @see <a href="https://datasketches.apache.org/docs/QuantilesAll/SketchingQuantilesAndRanksTutorial.html">
  * Sketching Quantiles and Ranks Tutorial</a>
  * @author Lee Rhodes
  */

src/main/java/org/apache/datasketches/quantilescommon/InequalitySearch.java

@@ -40,7 +40,7 @@
  * <p>Given a sorted array of values <i>arr[]</i> and a search key value <i>v</i>, the algorithms for
  * the searching criteria are given with each enum criterion.</p>
  *
- * @see <a href="https://datasketches.apache.org/docs/Quantiles/SketchingQuantilesAndRanksTutorial.html">
+ * @see <a href="https://datasketches.apache.org/docs/QuantilesAll/SketchingQuantilesAndRanksTutorial.html">
  * Sketching Quantiles and Ranks Tutorial</a>
  * @author Lee Rhodes
  */

src/main/java/org/apache/datasketches/quantilescommon/QuantileSearchCriteria.java

@@ -22,7 +22,7 @@
 /**
  * These search criteria are used by the KLL, REQ and Classic Quantiles sketches in the DataSketches library.
  *
- * @see <a href="https://datasketches.apache.org/docs/Quantiles/SketchingQuantilesAndRanksTutorial.html">
+ * @see <a href="https://datasketches.apache.org/docs/QuantilesAll/SketchingQuantilesAndRanksTutorial.html">
  * Sketching Quantiles and Ranks Tutorial</a>
  *
  * @author Lee Rhodes

src/main/java/org/apache/datasketches/quantilescommon/QuantilesAPI.java

@@ -194,7 +194,7 @@
  * <p>[*] Note that obtaining epsilon may require using a similar function but with more parameters
  * based on the specific sketch implementation.</p>
  *
- * @see <a href="https://datasketches.apache.org/docs/Quantiles/SketchingQuantilesAndRanksTutorial.html">
+ * @see <a href="https://datasketches.apache.org/docs/QuantilesAll/SketchingQuantilesAndRanksTutorial.html">
  * Sketching Quantiles and Ranks, Tutorial</a>
  * @see org.apache.datasketches.quantilescommon.QuantileSearchCriteria
  *

src/main/java/org/apache/datasketches/req/BaseReqSketch.java

@@ -28,7 +28,7 @@
  * This abstract class provides a single place to define and document the public API
  * for the Relative Error Quantiles Sketch.
  *
- * @see <a href="https://datasketches.apache.org/docs/Quantiles/SketchingQuantilesAndRanksTutorial.html">
+ * @see <a href="https://datasketches.apache.org/docs/QuantilesAll/SketchingQuantilesAndRanksTutorial.html">
  * Sketching Quantiles and Ranks Tutorial</a>
  *
  * @author Lee Rhodes