[docs] Add "GNU binutils Replacements" section to command guide
Summary:
This splits out a section in the command guide for llvm tools that can be used as replacements for GNU tools. For pages that didn't exist, I added stub pages that can be individually filled in by followup patches.
Tested by running `ninja docs-llvm-html` and inspecting locally.
Reviewers: jhenderson, MaskRay, grimar, alexshap
Reviewed By: jhenderson, MaskRay, grimar
Subscribers: smeenai, arphaman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63014
llvm-svn: 363100
diff --git a/llvm/docs/CommandGuide/llvm-ranlib.md b/llvm/docs/CommandGuide/llvm-ranlib.md
new file mode 100644
index 0000000..4377364
--- /dev/null
+++ b/llvm/docs/CommandGuide/llvm-ranlib.md
@@ -0,0 +1,17 @@
+# llvm-ranlib - generates an archive index
+
+## SYNOPSIS
+
+**llvm-ranlib** [*options*]
+
+## DESCRIPTION
+
+**llvm-ranlib** is an alias for the [llvm-ar](llvm-ar.html) tool that generates
+an index for an archive. It can be used as a replacement for GNU's **ranlib**
+tool.
+
+Running **llvm-ranlib** is equivalent to running **llvm-ar s**.
+
+## SEE ALSO
+
+Refer to [llvm-ar](llvm-ar.html) for additional information.