beta tester info

docs/getting_started.md

@@ -25,15 +25,19 @@ You can install Textual via PyPI.
 If you plan on developing Textual apps, then you should install `textual[dev]`. The `[dev]` part installs a few extra dependencies for development.
 
 ```bash
-pip install "textual[dev]"
+pip install "textual[dev]==0.2.0b1"
 ```
 
 If you only plan on _running_ Textual apps, then you can drop the `[dev]` part:
 
 ```bash
-pip install textual
+pip install textual==0.2.0.b1
 ```
 
+!!! important
+
+    There may be a more recent beta version since the time of writing. Check the [release history](https://pypi.org/project/textual/#history) for a more recent version.
+
 ## Textual CLI
 
 If you installed the dev dependencies you have have access to the `textual` CLI command. There are a number of sub-commands which will aid you in building Textual apps.

docs/tutorial.md

@@ -35,13 +35,13 @@ If you want to try the finished Stopwatch app and follow along with the code, fi
 === "HTTPS"
 
     ```bash
-    git clone https://github.com/Textualize/textual.git
+    git clone -b css https://github.com/Textualize/textual.git
     ```
 
 === "SSH"
 
     ```bash
-    git clone git@github.com:Textualize/textual.git
+    git clone -b css git@github.com:Textualize/textual.git
     ```
 
 === "GitHub CLI"
@@ -50,6 +50,7 @@ If you want to try the finished Stopwatch app and follow along with the code, fi
     gh repo clone Textualize/textual
     ```
 
+
 With the repository cloned, navigate to `docs/examples/tutorial` and run `stopwatch.py`.
 
 ```bash