update links to locations in .qll files

python/ql/src/external/CodeDuplication.qll

@@ -12,7 +12,7 @@ string relativePath(File file) {
  * Holds if the `index`-th token of block `copy` is in file `file`, spanning
  * column `sc` of line `sl` to column `ec` of line `el`.
  *
- * For more information, see [LGTM locations](https://lgtm.com/help/ql/locations).
+ * For more information, see [LGTM locations](https://help.semmle.com/QL/learn-ql/ql/locations.html).
  */
 pragma[noinline, nomagic]
 private predicate tokenLocation(File file, int sl, int sc, int ec, int el, Copy copy, int index) {
@@ -82,7 +82,7 @@ class Copy extends @duplication_or_similarity
      * The location spans column `startcolumn` of line `startline` to
      * column `endcolumn` of line `endline` in file `filepath`.
      * For more information, see
-     * [LGTM locations](https://lgtm.com/help/ql/locations).
+     * [LGTM locations](https://help.semmle.com/QL/learn-ql/ql/locations.html).
      */
     predicate hasLocationInfo(string filepath, int startline, int startcolumn, int endline, int endcolumn) {
         sourceFile().getName() = filepath and

python/ql/src/external/DefectFilter.qll

@@ -8,7 +8,7 @@ import semmle.python.Files
  * column `startcol` of line `startline` to column `endcol` of line `endline`
  * in file `filepath`.
  *
- * For more information, see [LGTM locations](https://lgtm.com/help/ql/locations).
+ * For more information, see [LGTM locations](https://help.semmle.com/QL/learn-ql/ql/locations.html).
  */
 external predicate defectResults(int id, string queryPath, string filepath, int startline,
                                  int startcol, int endline, int endcol, string message);

python/ql/src/semmle/python/Files.qll

@@ -321,7 +321,7 @@ abstract class Container extends @container {
     /**
      * Gets a URL representing the location of this container.
      *
-     * For more information see https://lgtm.com/help/ql/locations#providing-urls.
+     * For more information see https://help.semmle.com/QL/learn-ql/ql/locations.html#providing-urls.
      */
     abstract string getURL();