added empty concept

Author: jurgenvinju

courses/RascalAmendmentProposals/RascalAmendmentProposals.md

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+---
+title: Getting Help
+sidebar_position: 2
+keywords:
+  - RFC
+  - RAP
+  - architecture
+  - design
+  - compatibilitu
+details:
+  - CommandLine
+  - GettingHelp:IDE
+  - Browsing
+---
+
+Rascal Amendement Proposals are short documents that motivate and detail significant changes to
+the Rascal language, its implementation architecture or its ecosystem of library packages.
+
+