[llvm] [Doc] Improve documentation for JITLink. (PR #109163)

[Lang Hames via llvm-commits]

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@@ -11,7 +11,7 @@ Introduction
 This document aims to provide a high-level overview of the design and API
 of the JITLink library. It assumes some familiarity with linking and
 relocatable object files, but should not require deep expertise. If you know
-what a section, symbol, and relocation are you should find this document
+what a section, symbol, and relocation then you should find this document
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lhames wrote:

substituting "then" for "are" here doesn't work, but it would make sense to do both:

"if you know what a section, symbol, and relocation are then you should find this document..."

https://github.com/llvm/llvm-project/pull/109163