Fix indentation in RL tips doc (#657)

* Update rl_tips.rst

indent fix to make if done and its following statement work

* Fix indentation and update changelog

* Skip type check for python 3.9

Co-authored-by: paulg <cove9988@gmail.com>

.github/workflows/ci.yml

@@ -40,6 +40,8 @@ jobs:
     - name: Type check
       run: |
         make type
+      # Skip Type Check for python 3.9, see https://github.com/python/typed_ast/issues/169
+      if: ${{ matrix.python-version != 3.9 }}
     - name: Check codestyle
       run: |
         make check-codestyle

docs/guide/rl_tips.rst

@@ -194,15 +194,15 @@ If you want to quickly try a random agent on your environment, you can also do:
 
 .. code-block:: python
 
-	env = YourEnv()
-	obs = env.reset()
-	n_steps = 10
-	for _ in range(n_steps):
-	    # Random action
-	    action = env.action_space.sample()
-	    obs, reward, done, info = env.step(action)
-			if done:
-				obs = env.reset()
+  env = YourEnv()
+  obs = env.reset()
+  n_steps = 10
+  for _ in range(n_steps):
+      # Random action
+      action = env.action_space.sample()
+      obs, reward, done, info = env.step(action)
+      if done:
+          obs = env.reset()
 
 
 **Why should I normalize the action space?**

docs/misc/changelog.rst

@@ -30,6 +30,7 @@ Documentation:
 ^^^^^^^^^^^^^^
 - Add highway-env to projects page (@eleurent)
 - Add tactile-gym to projects page (@ac-93)
+- Fix indentation in the RL tips page (@cove9988)
 
 
 Release 1.3.0 (2021-10-23)
@@ -835,4 +836,4 @@ And all the contributors:
 @ShangqunYu @PierreExeter @JacopoPan @ltbd78 @tom-doerr @Atlis @liusida @09tangriro @amy12xx @juancroldan
 @benblack769 @bstee615 @c-rizz @skandermoalla @MihaiAnca13 @davidblom603 @ayeright @cyprienc
 @wkirgsn @AechPro @CUN-bjy @batu @IljaAvadiev @timokau @kachayev @cleversonahum
-@eleurent @ac-93
+@eleurent @ac-93 cove9988