diff --git a/project-plan.md b/project-plan.md
index a441532..6c9669f 100644
--- a/project-plan.md
+++ b/project-plan.md
@@ -17,14 +17,14 @@ From Spoofax's website:
> Spoofax is a platform for developing textual domain-specific languages with
> full-featured Eclipse editor plugins.

A feature that Spoofax is lacking is a Read-Eval-Print Loop (REPL) [-service-]
[-generator.-]{+service.+} A
REPL is an interactive programming environment that takes single expressions,
evaluates them and prints the result(s). REPLs are a popular tool for
programming because they facilitate exploratory programming and debugging.
Common examples include command-line shells such as Bash and Python's REPL.

The deliverable for this project, then, is to create such a REPL[-generator-] for the Spoofax
Language Workbench.

## The final product

@@ -32,11 +32,12 @@ The final product will have to meet the following requirements and demands, as
specified following the MoSCoW method:

* Must-have
        * Interactive [-shell-]{+REPL+}
        * Works with any language defined in Spoofax
          * Optionally recognizes language-specific REPL commands defined in an
            esv file
        * Input[-& output-] history
        {+* Automatic binding of previously yielded values+}
        * Multiline input editing
        * Error reporting
        * Syntax checked expressions
@@ -45,14 +46,15 @@ specified following the MoSCoW method:
* Should-have
        * Ability to redefine identifiers
        * Environment inspection
        * Save and load [-shell-]{+REPL+} state
* Could-have
        * [-Context-sensitive-]{+Syntactic+} code completion
        * Hover over variables to see value, type and others
        * Literate programming
        * Integration with other IDEs (IntelliJ)
* Won't-have
        * GDB-style debugging and nested REPLs
        {+* Semantic code completion+}

If the above turns out to be (too) easy, the REPL can be extended into a
language playground such as the one offered by the Swift programming language.