Added missing descriptions: Chapter 130-140

Signed-off-by: mrgarris0n <gergely.karacsonyi@gmail.com>

Author: mrgarris0n

doc/_admin-guide/130_Correlating_log_messages/001_Referencing_previous_messages_grouping-by.md

@@ -1,6 +1,8 @@
 ---
 title: Referencing earlier messages of the context
 id: adm-cor-prev
+description: >-
+	This chapter describes how to reference earlier messages of the context in {{ site.product.short_name }}
 ---
 
 When creating the aggregated message, or in the various parameters of

doc/_admin-guide/130_Correlating_log_messages/002_grouping-by_options.md

@@ -1,6 +1,8 @@
 ---
 title: Options of grouping-by parsers
 id: adm-cor-grouping-by-opt
+description: >-
+	This section describes the options of the grouping-by() parser in {{ site.product.short_name }}.
 ---
 
 The grouping-by has the following options.

doc/_admin-guide/140_Enriching_log_messages_with_external_data/000_Adding_metadata_from_external_file/002_add-contextual-data_options.md

@@ -1,6 +1,8 @@
 ---
 title: Options of add-contextual-data()
 id: adm-enrich-add-contextual-data-opt
+description: >-
+	This section describes the options of add-contextual-data() in {{ site.product.short_name }}.
 ---
 
 The add-contextual-data() has the following options.

doc/_admin-guide/140_Enriching_log_messages_with_external_data/001_Looking_up_geoip2_data/000_Referring_to_parts_of_the_message_as_a_macro.md

@@ -1,14 +1,13 @@
 ---
 title: Referring to parts of the message as a macro
 id: adm-enrich-geoip-macro
+description: >-
+	You can refer to the separated parts of the message using the key of the
+	value as a macro. For example, if the message contains
+	KEY1=value1,KEY2=value2, you can refer to the values as ${KEY1} and ${KEY2}.
 ---
 
-You can refer to the separated parts of the message using the key of the
-value as a macro. For example, if the message contains
-KEY1=value1,KEY2=value2, you can refer to the values as ${KEY1} and
-${KEY2}.
-
-for example, if the default prefix (.geoip2) is used, you can determine
+For example, if the default prefix (.geoip2) is used, you can determine
 the country code using **${.geoip2.country.iso\_code}**.
 
 To look up all keys:

doc/_admin-guide/140_Enriching_log_messages_with_external_data/001_Looking_up_geoip2_data/001_Using_the_geoip2_parser.md

@@ -1,6 +1,8 @@
 ---
 title: Using the GeoIP2 parser
 id: adm-enrich-geoip-using
+description: >-
+	This section describes how to use the geoip2() parser in {{ site.product.short_name }}.
 ---
 
 **Declaration**

doc/_admin-guide/140_Enriching_log_messages_with_external_data/001_Looking_up_geoip2_data/003_geoip2_parser_options.md

@@ -2,6 +2,8 @@
 title: Options of geoip2 parsers
 parser: geoip2
 id: adm-enrich-geoip-opt
+description: >-
+	This section describes the options of geoip2() parser in {{ site.product.short_name }}.
 ---
 
 The geoip2 parser has the following options.