Fix broken FAQ link in primer.md

googletest/docs/primer.md

@@ -317,7 +317,7 @@ To create a fixture:
 1.  If necessary, write a destructor or `TearDown()` function to release any
     resources you allocated in `SetUp()` . To learn when you should use the
     constructor/destructor and when you should use `SetUp()/TearDown()`, read
-    this [FAQ](faq.md#should-i-use-the-constructordestructor-of-the-test-fixture-or-the-set-uptear-down-function) entry.
+    this [FAQ](faq.md#should-i-use-the-constructordestructor-of-the-test-fixture-or-setupteardown) entry.
 1.  If needed, define subroutines for your tests to share.
 
 When using a fixture, use `TEST_F()` instead of `TEST()` as it allows you to