Various multiples fixes after comparing with the Python's Latex-to-Sphinx converter's output
diff --git a/doc/internals.rst b/doc/internals.rst
index 8b1c9f6..839c446 100644
--- a/doc/internals.rst
+++ b/doc/internals.rst
@@ -53,7 +53,7 @@
(using Python's own TLS API, :c:func:`PyThread_set_key_value`). When it is
necessary to re-acquire the GIL, either after the OpenSSL API returns or in a C
callback invoked by that OpenSSL API, the value of the thread local variable is
-retrieved (:c:func`PyThread_get_key_value`) and used to re-acquire the GIL.
+retrieved (:c:func:`PyThread_get_key_value`) and used to re-acquire the GIL.
This allows Python threads to execute while OpenSSL APIs are running and allows
use of any particular pyOpenSSL object from any Python thread, since there is
no per-thread state associated with any of these objects and since OpenSSL is