doc: add an architecture overview

2 files changed, 2 insertions, 2 deletions

diff --git a/cache/doc.go b/cache/doc.go
index aa6caebd..456c1fd3 100644
--- a/cache/doc.go
+++ b/cache/doc.go
@@ -1,3 +1,3 @@
-// Package cache contains a caching layer on top of the low-level bug
+// Package cache contains a caching layer on top of the low-level bug and identity
 // functions to provide efficient querying, filtering, sorting.
 package cache
diff --git a/cache/repo_cache.go b/cache/repo_cache.go
index afeb6140..01e5a4a9 100644
--- a/cache/repo_cache.go
+++ b/cache/repo_cache.go
@@ -41,7 +41,7 @@ func (e ErrInvalidCacheFormat) Error() string {
 //
 // 1. After being loaded, a Bug is kept in memory in the cache, allowing for fast
 // 		access later.
-// 2. The cache maintain on memory and on disk a pre-digested excerpt for each bug,
+// 2. The cache maintain in memory and on disk a pre-digested excerpt for each bug,
 // 		allowing for fast querying the whole set of bugs without having to load
 //		them individually.
 // 3. The cache guarantee that a single instance of a Bug is loaded at once, avoiding