Fix url in docs (#1000)

* fixed URL in docs

* Update changelog.rst

Author: jlp237

docs/guide/install.rst

@@ -60,7 +60,7 @@ Bleeding-edge version
 
 	.. code-block:: bash
 
-		pip install git+https://github.com/carlosluis/stable-baselines3/tree/fix_tests
+		pip install git+https://github.com/carlosluis/stable-baselines3@fix_tests
 
   See `PR #780 <https://github.com/DLR-RM/stable-baselines3/pull/780>`_ for more information.
 

docs/misc/changelog.rst

@@ -31,6 +31,7 @@ Documentation:
 - Fixed typo in docstring "nature" -> "Nature" (@Melanol)
 - Added info on split tensorboard logs into (@Melanol)
 - Fixed typo in ppo doc (@francescoluciano)
+- Fixed typo in install doc(@jlp-ue)
 
 
 Release 1.6.0 (2022-07-11)
@@ -1015,4 +1016,4 @@ And all the contributors:
 @eleurent @ac-93 @cove9988 @theDebugger811 @hsuehch @Demetrio92 @thomasgubler @IperGiove @ScheiklP
 @simoninithomas @armandpl @manuel-delverme @Gautam-J @gianlucadecola @buoyancy99 @caburu @xy9485
 @Gregwar @ycheng517 @quantitative-technologies @bcollazo @git-thor @TibiGG @cool-RR @MWeltevrede
-@Melanol @qgallouedec @francescoluciano
+@Melanol @qgallouedec @francescoluciano @jlp-ue