doc: Add missing period at the end of the sentence.

diff --git a/doc/guix.texi b/doc/guix.texi
index d74f59f..69e7d5f 100644 (file)
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -261,7 +261,7 @@ Programming Interface
 * Derivations::                 Low-level interface to package derivations.
 * The Store Monad::             Purely functional interface to the store.
 * G-Expressions::               Manipulating build expressions.
-* Invoking guix repl::          Programming Guix in Guile
+* Invoking guix repl::          Programming Guix in Guile.
 
 Defining Packages