Expanded several templates with meta explanations

_templates/benevolent_dictator.md

@@ -21,3 +21,5 @@ modification: The BDFL can change the governance structure of the community at w
 ---
 
 Use this template as-is or edit it to adapt it to your community.
+
+A commonly used structure in open-source communities such as Linux.

_templates/elected_board.md

@@ -24,3 +24,5 @@ modification: Changes to this Rule require 51% of the board to approve a referen
 ---
 
 Use this template as-is or edit it to adapt it to your community.
+
+A widely used governance structure for membership organizations whose members are informed about governance processes but don't have capacity for active involvement.

_templates/petition.md

@@ -25,3 +25,5 @@ modification: The petition process may be used to modify this Rule.
 ---
 
 Use this template as-is or edit it to adapt it to your community.
+
+Enables community members to have direct involvement in crafting and deciding on policy.

_templates/self-appointed_board.md

@@ -24,3 +24,5 @@ modification: Changes to this Rule require 2/3 approval of the board.
 ---
 
 Use this template as-is or edit it to adapt it to your community.
+
+A widely used governance structure for membership organizations whose members don't have capacity for active involvement in governance.

_templates/trias_politica.md

@@ -24,3 +24,5 @@ modification: Changes to this Rule require 4 votes from the board and 2 votes fr
 ---
 
 Use this template as-is or edit it to adapt it to your community.
+
+A structure for complex, multi-stakeholder organizations, based on structures frequently found among national governments.