Update README.md for .NET CDP version modifications

Author: jimevans

dotnet/src/webdriver/cdp/README.md

@@ -1,4 +1,4 @@
-#Adding support for a new version of Chromium DevTools Protocol to the .NET bindings
+### Adding support for a new version of Chromium DevTools Protocol to the .NET bindings
 
 To add support for a new version of the Chromium DevTools Protocol to the .NET bindings,
 perform the following steps, where `<N>` is the major version of the protocol:
@@ -16,25 +16,29 @@ add an entry for version `<N>` to the `SupportedDevToolsVersions` dictionary ini
 6. In [`//dotnet/src/webdriver:WebDriver.csproj.prebuild.cmd`](https://github.com/SeleniumHQ/selenium/blob/trunk/dotnet/src/webdriver/WebDriver.csproj.prebuild.cmd),
 add the following block (substituting the proper value for `<N>`):
 
-    if not exist  "%1..\..\..\bazel-bin\dotnet\src\webdriver\cdp\v<N>\DevToolsSessionDomains.cs" (
-      echo Generating CDP code for version <N>
-      pushd "%1..\..\.."
-      bazel build //dotnet/src/webdriver/cdp:generate-v<N>
-      popd
-    )
+```
+if not exist  "%1..\..\..\bazel-bin\dotnet\src\webdriver\cdp\v<N>\DevToolsSessionDomains.cs" (
+  echo Generating CDP code for version <N>
+  pushd "%1..\..\.."
+  bazel build //dotnet/src/webdriver/cdp:generate-v<N>
+  popd
+)
+```
 
 7. In [`//dotnet/src/webdriver:WebDriver.csproj.prebuild.sh`](https://github.com/SeleniumHQ/selenium/blob/trunk/dotnet/src/webdriver/WebDriver.csproj.prebuild.sh),
 add the following block (substituting the proper value for `<N>`):
 
-    if [[ ! -f "$1../../../bazel-bin/dotnet/src/webdriver/cdp/v<N>/DevToolsSessionDomains.cs" ]]
-    then
-      echo "Generating CDP code for version <N>"
-      bazel build //dotnet/src/webdriver/cdp:generate-v<N>
-    fi
+```
+if [[ ! -f "$1../../../bazel-bin/dotnet/src/webdriver/cdp/v<N>/DevToolsSessionDomains.cs" ]]
+then
+  echo "Generating CDP code for version <N>"
+  bazel build //dotnet/src/webdriver/cdp:generate-v<N>
+fi
+```
 
 8. Commit the changes.
 
-#Removing support for a version of Chromium DevTools Protocol from the .NET bindings
+### Removing support for a version of Chromium DevTools Protocol from the .NET bindings
 
 To remove support for a version of the Chromium DevTools Protocol from the .NET bindings,
 perform the following steps, where `<N>` is the major version of the protocol: