Add a few projects to the list
diff --git a/PROJECTS.md b/PROJECTS.md
index d97c332..9472fb4 100644
--- a/PROJECTS.md
+++ b/PROJECTS.md
@@ -58,6 +58,9 @@ These are good small projects to get started with libgit2.
* Submit a PR to clarify documentation! While we do try to document all of
the APIs, your fresh eyes on the documentation will find areas that are
confusing much more easily.
+* Add support for the symref protocol extension, so we don't guess
+ what the remote's default branch is
+ [#2006](https://github.com/libgit2/libgit2/issues/2006)
If none of these appeal to you, take a look at our issues list to see if
there are any unresolved issues you'd like to jump in on.
@@ -80,3 +83,9 @@ projects above.
* Upgrade internal libxdiff code to latest from core Git
* Add a hashtable lookup for files in the index instead of binary search
every time
+* Make the index write the cache out to disk (with tests to gain
+ confidence that the caching invalidation works correctly)
+* Have the tree builder use a hash table when building instead of a
+ list.
+* Move the tagopt mechanism to the newer git 1.9 interpretation of
+ --tags [#2120](https://github.com/libgit2/libgit2/issues/2120)