Replace dotr -> scala and dotd -> scalad in the docs

Author: anatoliykmetyuk

docs/_includes/getting-started.html

@@ -10,7 +10,7 @@ <h1 id="getting-started">Try Dotty</h1>
         <p>Now you can compile Scala source code:</p>
         <pre><code>dotc hello.scala</code></pre>
 
-        <p>To start the REPL, run: <code>dotr</code>.</p>
+        <p>To start the REPL, run: <code>scala</code>.</p>
 
         <p>Or, you can try Dotty in your browser with <a href="https://scastie.scala-lang.org/?target=dotty">Scastie</a>.</p>
 

docs/docs/contributing/debug-tests.md

@@ -21,7 +21,7 @@ $ dotc tests/debug/while.scala
 Second, run the compiled class with debugging enabled (suppose the main class is `Test`):
 
 ```shell
-$ dotr -d Test
+$ scala -d Test
 ```
 
 Third, start JDB:
@@ -89,7 +89,7 @@ $ dotc tests/debug/while.scala
 Second, run the compiled class with debugging enabled:
 
 ```shell
-$ dotr -d Test
+$ scala -d Test
 ```
 
 Finally, run the expect script:

docs/docs/contributing/getting-started.md

@@ -26,7 +26,7 @@ all be done from within sbt:
 ```bash
 $ sbt
 > dotc tests/pos/HelloWorld.scala
-> dotr HelloWorld
+> scala HelloWorld
 hello world
 ```
 
@@ -44,7 +44,7 @@ and you will be able to run the corresponding commands directly from your consol
 $ dotc tests/pos/HelloWorld.scala
 
 # Run it with the proper classpath
-$ dotr HelloWorld
+$ scala HelloWorld
 ```
 
 
@@ -62,7 +62,7 @@ scala>
 or via bash:
 
 ```bash
-$ dotr
+$ scala
 ```
 
 

docs/docs/contributing/workflow.md

@@ -71,7 +71,7 @@ The basics of working with Dotty codebase are documented [here](https://dotty.ep
 |                        Command                       |                                                          Description                                                          |
 |------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------|
 | `dotc ../issues/Playground.scala`                    | Compile the given file – path relative to the Dotty directory. Output the compiled class files to the Dotty directory itself. |
-| `dotr Playground`                                    | Run the compiled class `Playground`. Dotty directory is on classpath by default.                                              |
+| `scala Playground`                                    | Run the compiled class `Playground`. Dotty directory is on classpath by default.                                              |
 | `repl`                                               | Start REPL                                                                                                                    |
 | `testOnly dotty.tools.dotc.CompilationTests -- *pos` | Run test (method) `pos` from `CompilationTests` suite.                                                                        |
 | `testCompilation sample`                             | In all test suites, run test files containing the word `sample` in their title.                                               |

docs/docs/reference/metaprogramming/staging.md

@@ -87,11 +87,11 @@ In case you prefer to create the project on your own, make sure to define the fo
 libraryDependencies += "ch.epfl.lamp" %% "dotty-staging" % scalaVersion.value
 ```
 
-and in case you use `dotc`/`dotr` directly, then use the `-with-compiler` flag for both:
+and in case you use `dotc`/`scala` directly, then use the `-with-compiler` flag for both:
 
 ```shell
 dotc -with-compiler -d out Test.scala
-dotr -with-compiler -classpath out Test
+scala -with-compiler -classpath out Test
 ```
 
 ## Example

docs/docs/reference/metaprogramming/tasty-inspect.md

@@ -47,7 +47,7 @@ compilation we need to make the compiler available to the runtime:
 
 ```shell
 dotc -d out Test.scala
-dotr -with-compiler -classpath out Test
+scala -with-compiler -classpath out Test
 ```
 
 

docs/docs/usage/getting-started.md

@@ -38,14 +38,14 @@ Start using the Dotty IDE in any Dotty project by following the
 ### Standalone installation
 Releases are available for download on the [Releases Section](https://github.com/lampepfl/dotty/releases)
 of the Dotty repository. Releases include three executables: `dotc` the Dotty compiler,
-`dotd` the [Dotty Documentation tool](./dottydoc.md) and `dotr` the Dotty REPL.
+`scalad` the [Dotty Documentation tool](./dottydoc.md) and `scala` the Dotty REPL.
 
 ```
 .
 └── bin
     ├── dotc
-    ├── dotd
-    └── dotr
+    ├── scalad
+    └── scala
 ```
 
 Add these executables to your `PATH` and you will be able to run the corresponding commands directly
@@ -55,10 +55,10 @@ from your console:
 $ dotc HelloWorld.scala
 
 # Run it with the proper classpath
-$ dotr HelloWorld
+$ scala HelloWorld
 
 # Start a Dotty REPL
-$ dotr
+$ scala
 Starting dotty REPL...
 scala>
 ```