Change contents to make them more readable

Author: IvanZosimov

docs/advanced-usage.md

@@ -21,7 +21,7 @@
 
 ## Specifying a Python version
 
-If there is a specific version of Python that you need and you don't want to worry about any potential breaking changes due to patch updates (going from `3.7.5` to `3.7.6` for example), you should specify the **exact major, minor, and patch version** (such as `3.7.5`):
+- If there is a specific version of Python that you need and you don't want to worry about any potential breaking changes due to patch updates (going from `3.7.5` to `3.7.6` for example), you should specify the **exact major, minor, and patch version** (such as `3.7.5`):
 
   ```yaml
 steps:
@@ -34,7 +34,7 @@ steps:
   - The only downside to this is that set-up will take a little longer since the exact version will have to be downloaded if the exact version is not already installed on the runner due to more recent versions.
   - MSI installers are used on Windows for this, so runs will take a little longer to set up vs MacOS and Linux.
 
-You can specify **only a major and minor version** if you are okay with the most recent patch version being used:
+- You can specify **only a major and minor version** if you are okay with the most recent patch version being used:
 
   ```yaml
 steps:
@@ -48,7 +48,7 @@ steps:
   - The patch version that will be preinstalled, will generally be the latest and every time there is a new patch released, the older version that is preinstalled will be replaced.
   - Using the most recent patch version will result in a very quick setup since no downloads will be required since a locally installed version of Python on the runner will be used.
 
-You can specify the version with **prerelease tag** to download and set up an accurate pre-release version of Python:
+- You can specify the version with **prerelease tag** to download and set up an accurate pre-release version of Python:
 
 ```yaml
 steps:
@@ -59,7 +59,7 @@ steps:
 - run: python my_script.py
 ```
 
-It's also possible to use **x.y-dev syntax** to download and set up the latest patch version of Python, alpha and beta releases included. (for specified major & minor versions):
+- It's also possible to use **x.y-dev syntax** to download and set up the latest patch version of Python, alpha and beta releases included. (for specified major & minor versions):
 
 ```yaml
 steps:
@@ -70,9 +70,9 @@ steps:
 - run: python my_script.py
 ```
 
-You can also use several types of ranges that are specified in [semver](https://github.com/npm/node-semver#ranges), for instance:
+- You can also use several types of ranges that are specified in [semver](https://github.com/npm/node-semver#ranges), for instance:
 
-- **[hyphen ranges](https://github.com/npm/node-semver#hyphen-ranges-xyz---abc)** to download and set up the latest available version of Python (includes both pre-release and stable versions):
+ - **[hyphen ranges](https://github.com/npm/node-semver#hyphen-ranges-xyz---abc)** to download and set up the latest available version of Python (includes both pre-release and stable versions):
 
 ```yaml
 steps:
@@ -83,7 +83,7 @@ steps:
 - run: python my_script.py
 ```
 
-- **[x-ranges](https://github.com/npm/node-semver#x-ranges-12x-1x-12-)** to specify the latest stable version of Python (for specified major version):
+ - **[x-ranges](https://github.com/npm/node-semver#x-ranges-12x-1x-12-)** to specify the latest stable version of Python (for specified major version):
 
 ```yaml
 steps: