Add entry for unittest documentation.
diff --git a/Doc/Makefile.deps b/Doc/Makefile.deps
index f2385f8..aa75a6f 100644
--- a/Doc/Makefile.deps
+++ b/Doc/Makefile.deps
@@ -57,6 +57,7 @@
 	lib/libinspect.tex \
 	lib/libdifflib.tex \
 	lib/libdoctest.tex \
+	lib/libunittest.tex \
 	lib/libtypes.tex \
 	lib/libtraceback.tex \
 	lib/libpickle.tex \
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index e74329b..3e8cab1 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -112,6 +112,7 @@
 
 \input{libmisc}                 % Miscellaneous Services
 \input{libdoctest}
+\input{libunittest}
 \input{libmath}
 \input{libcmath}
 \input{librandom}