README: Fix links

README.rst

@@ -30,7 +30,7 @@ prolonged at a simple request of the key holder while the to-renew
 certificate is still valid (not expired, not revoked).
 
 Bootstrapping the system (creating the first service certificate for
-_`caucased` to operate on HTTPS, and creating the first user certificate to
+`caucased`_ to operate on HTTPS, and creating the first user certificate to
 control further certificate issuance) works by caucase automatically signing a
 set number of certificates upon submission.
 
@@ -135,7 +135,7 @@ This command is intended to be used for isolated actions:
 It is also able to submit certificate signing requests, retrieve signed
 certificates, requesting certificate renewals and updating both
 CA certificates and revocation lists, but you may be interested in using
-_`caucase-updater` for this instead.
+`caucase-updater`_ for this instead.
 
 caucase-updater
 +++++++++++++++
@@ -160,7 +160,7 @@ caucase-rerequest
 
 Utility allowing to re-issue a CSR using a locally-generated private key.
 
-Intended to be used in conjunction with _`caucase-updater` when user cannot
+Intended to be used in conjunction with `caucase-updater`_ when user cannot
 generate the CSR on the system where the certificate is desired (ex: automated
 HTTPS server deployment), where user is not the intended audience for
 caucase-produced certificate:
@@ -182,7 +182,7 @@ Utility displaying the identifier of given key, or the identifier of keys
 involved in given backup file.
 
 Allows identifying users which hold a private key candidate for restoring a
-caucased backup (see _`Restoration procedure`).
+caucased backup (see `Restoration procedure`_).
 
 caucased
 ++++++++
@@ -193,7 +193,7 @@ This daemon provides access to both CAU and CAS services over both HTTP and
 HTTPS.
 
 It handles its own certificate issuance and renewal, so there is no need to use
-_`caucase-updater` for this service.
+`caucase-updater`_ for this service.
 
 Backups
 -------