Fix linter warnings

Proposal.md

@@ -1,16 +1,17 @@
+<!-- markdownlint-disable-next-line MD041 -->
 ##### Project
 
 ::[PROJECT-NAME](Home)
 
-##### Project Time-frame:
+##### Project Time-frame
 
 ::2003/1/16 to 2003/3/19
 
-##### Summary:
+##### Summary
 
 ::2-4 SENTENCE SUMMARY
 
-##### Attached Worksheets:
+##### Attached Worksheets
 
 Project Proposal > [Target audience and benefits](Target-and-Benefits)
 
@@ -63,8 +64,8 @@ motivated or honest in their evaluations. There are already some
 clan directory web sites, but they are not automated so they are
 always out of date and do not rate the quality of the websites.
 
-- ::[Example of current manually maintained clan website](#)
-- ::[Link to existing competitor](#)
+- ::[Example of current manually maintained clan website](#tbd)
+- ::[Link to existing competitor](#tbd)
 
 #### Why is this problem worth solving or worth solving better?
 
@@ -99,9 +100,9 @@ those advantages.
 
 ::The following pages provide additional background and motivation:
 
-- ::[Magazine article on this topic](#)
-- ::[Industry analysis's report on massive-multi-player game market](#)
-- ::[Quotes from game players](#)
+- ::[Magazine article on this topic](#tbd)
+- ::[Industry analysis's report on massive-multi-player game market](#tbd)
+- ::[Quotes from game players](#tbd)
 
 ### Goal