[GR-31080] Move the docs sources in Graal/docs space by preserving website pages build.

PullRequest: fastr/2612

Author: olyagpl

documentation/user/Compatibility.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: GraalVM R Engine Compatibility
+permalink: /reference-manual/r/Compatibility/
+---
 # GraalVM R Runtime Compatibility
 
 The GraalVM R runtime is based on GNU R and reuses the base packages.

documentation/user/ExtensionsSupport.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: R Extensions Support
+permalink: /reference-manual/r/ExtensionsSupport/
+---
 # R Extensions Support
 
 The GraalVM R runtime can run [R extensions](https://cran.r-project.org/doc/manuals/r-release/R-exts.html) in two modes:
@@ -8,7 +14,7 @@ The GraalVM R runtime can run [R extensions](https://cran.r-project.org/doc/manu
 The *native* mode is better suited for code that does not extensively interact with the R API, for example, plain C or Fortran numerical computations working on primitive arrays.
 The *llvm* mode provides significantly better performance for extensions that frequently call between R and the C/C++ code, because GraalVM's LLVM runtime is also partially evaluated like the R code.
 Both can be inlined and optimized as one compilation unit.
-Moreover, GraalVM's LLVM runtime is supported by [GraalVM tools](https://www.graalvm.org/docs/graalvm-tools/) which allows users to, for instance, debug R and C code together.
+Moreover, GraalVM's LLVM runtime is supported by [GraalVM tools](https://www.graalvm.org/tools/) which allows users to, for instance, debug R and C code together.
 
 In one GraalVM R process, any R package can be loaded in either mode.
 That is, GraalVM's R runtime supports mixing packages loaded in the *native* mode with packages loaded in the *llvm* mode in one process.

documentation/user/Interoperability.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: Interoperability
+permalink: /reference-manual/r/Interoperability/
+---
 # Interoperability
 
 GraalVM supports several other programming languages including JavaScript, Ruby, Python, and those that compile to LLVM bitcode.

documentation/user/JavaInteroperability.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: Interoperability with Java
+permalink: /reference-manual/r/JavaInteroperability/
+---
 # Interoperability with Java
 
 The GraalVM R runtime provides the built-in interoperability with Java.

documentation/user/ParallelExecution.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: Parallel Execution
+permalink: /reference-manual/r/ParallelExecution/
+---
 # Parallel Execution
 
 The `FORK` cluster and functions depending solely on forking (e.g., `mcparallel`) are not supported by the GraalVM R runtime at the moment.

documentation/user/Performance.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: GraalVM R Engine Performance
+permalink: /reference-manual/r/Performance/
+---
 # Runtime Performance
 
 GraalVM optimizes R code that runs for extended periods of time.

documentation/user/README.md

@@ -1,3 +1,9 @@
+---
+layout: docs-experimental
+toc_group: fastr
+link_title: R Reference
+permalink: /reference-manual/r/
+---
 # GraalVM R Runtime
 
 GraalVM provides a GNU-compatible R runtime to run R programs directly or in the REPL mode.