Fix AsciiDoc DocBook XML parsing errors (#3017)

Author: gtrivedi88

modules/administration-guide/pages/configuring-proxy.adoc

@@ -65,7 +65,7 @@ In some proxy configurations, `localhost` may not translate to `127.0.0.1`. Both
 
 . Start a workspace
 
-. Verify that the workspace pod contains `HTTP_PROXY`, `HTTPS_PROXY`, `http_proxy` and `https_proxy` environment variables, each set to `__<protocol>__://<user>:<password@<domain>:<port>`.
+. Verify that the workspace pod contains `HTTP_PROXY`, `HTTPS_PROXY`, `http_proxy` and `https_proxy` environment variables, each set to `<protocol>://<user>:<password>@<domain>:<port>`.
 
 . Verify that the workspace pod contains `NO_PROXY` and `no_proxy` environment variables, each set to comma-separated list of non-proxy hosts.
 

modules/administration-guide/partials/proc_configuring-number-of-replicas.adoc

@@ -25,7 +25,7 @@ spec:
     name: __<deployment_name>__ <1>
   ...
 ----
-<1> The `__<deployment_name>__` corresponds to the one following deployments:
+<1> The `<deployment_name>` corresponds to the one following deployments:
 * `{prod-deployment}`
 * `che-gateway`
 * `{prod-deployment}-dashboard`

modules/administration-guide/partials/proc_creating-lets-encrypt-certificate-for-che-on-amazon-elastic-kubernetes-service.adoc

@@ -121,7 +121,7 @@ spec:
                 name: cert-manager-acme-dns01-route53
 EOF
 ----
-<1> Replace `__<email_address>__` with your email address.
+<1> Replace `<email_address>` with your email address.
 
 . Create the {prod-namespace} namespace:
 +

modules/administration-guide/partials/proc_setting-up-an-application-link-on-the-bitbucket-server.adoc

@@ -45,11 +45,11 @@ openssl rand -base64 24 > bitbucket-shared-secret
 
 . Paste the content of the `bitbucket-shared-secret` file as the *Shared secret*.
 
-. Enter `__<bitbucket_server_url>__/plugins/servlet/oauth/request-token` as the *Request Token URL*.
+. Enter `<bitbucket_server_url>/plugins/servlet/oauth/request-token` as the *Request Token URL*.
 
-. Enter `__<bitbucket_server_url>__/plugins/servlet/oauth/access-token` as the *Access token URL*.
+. Enter `<bitbucket_server_url>/plugins/servlet/oauth/access-token` as the *Access token URL*.
 
-. Enter `__<bitbucket_server_url>__/plugins/servlet/oauth/authorize` as the *Authorize URL*.
+. Enter `<bitbucket_server_url>/plugins/servlet/oauth/authorize` as the *Authorize URL*.
 
 . Check the *Create incoming link* checkbox and click *Continue*.