INSTALL: Update configure option documentation

Author: pecharmin

INSTALL.md

@@ -98,16 +98,21 @@
 The behavior of gitblog.py can be configured by passing key/value pairs
 from Apache2 using PythonOption directives:
 
-| Option name                 | Default                | Description                                 | Possible values                               |
-|-----------------------------|------------------------|---------------------------------------------|-----------------------------------------------|
-| gitblog.report_errors       | False                  | Should errors be returned to users?         | Boolean                                       |
-| gitblog.www_repo            | /dev/null              | Path to the content git base repository     | Filesystem path                               |
-| gitblog.default_ref         | HEAD                   | Default git reference to display            | Any git reference                             |
-| gitblog.default_output_type | html                   | Output format for called site               | html, plain, markdown                         |
-| gitblog.footer              | True                   | Display footer meta information             | Boolean                                       |
-| gitblog.date_format         | %Y-%m-%d %H:%M         | Date format in footer                       | String, see datetime                          |
-| gitblog.markdown2_extras    | toc                    | Extra options when parsing content source   | String, comma separated values, see markdown2 |
-| gitblog.max_age_blob        | 1800                   | Cache-Control max-age for non-text elements | Integer                                       |
-| gitblog.max_age_tree        | 600                    | Cache-Control max-age for directory lising  | Integer                                       |
-| gitblog.denied_path         | private,templates      | Paths not to deliver (without leeding /)    | String, comma separated values                |
-| gitblog.redirect_code       | HTTP_MOVED_PERMANENTLY | HTTP response code for redirects on links   | HTTP_MOVED_PERMANENTLY, HTTP_MOVED_TEMPORARILY, HTTP_TEMPORARY_REDIRECT |
+| Option name                 | Default                      | Description                                 | Possible values                               |
+|-----------------------------|------------------------------|---------------------------------------------|-----------------------------------------------|
+| gitblog.report_errors       | False                        | Should errors be returned to users?         | Boolean                                       |
+| gitblog.www_repo            | /dev/null                    | Path to the content git base repository     | Filesystem path                               |
+| gitblog.default_ref         | HEAD                         | Default git reference to display            | Any git reference                             |
+| gitblog.default_output_type | html                         | Output format for called site               | html, plain, markdown                         |
+| gitblog.footer              | True                         | Display footer meta information             | Boolean                                       |
+| gitblog.date_format         | %Y-%m-%d %H:%M               | Date format in footer                       | String, see datetime                          |
+| gitblog.markdown2_extras    | toc                          | Extra options when parsing content source   | String, comma separated values, see markdown2 |
+| gitblog.max_age_blob        | 1800                         | Cache-Control max-age for non-text elements | Integer                                       |
+| gitblog.max_age_tree        | 600                          | Cache-Control max-age for directory lising  | Integer                                       |
+| gitblog.denied_path         | private,templates            | Paths not to deliver                        | String, comma separated values                |
+| gitblog.hidden_path         | private,templates,robots.txt | Paths not shown in directory listings       | String, comma separated values                |
+| gitblog.direct_path         | robots.txt                   | Paths to deliver without parsing            | String, comma separated values                |
+| gitblog.redirect_code       | HTTP_MOVED_PERMANENTLY       | HTTP response code for redirects on links   | HTTP_MOVED_PERMANENTLY, HTTP_MOVED_TEMPORARILY, HTTP_TEMPORARY_REDIRECT |
+
+Option notes:
+* denied_path, hidden_path, direct_path: Paths without leading /