adding some summary.txt files.

diff --git a/basis/simple-flat-file/summary.txt b/basis/simple-flat-file/summary.txt
new file mode 100644 (file)
index 0000000..af4fd1f
--- /dev/null
+++ b/basis/simple-flat-file/summary.txt
@@ -0,0 +1 @@
+Parsing simple text files

diff --git a/basis/simple-tokenizer/summary.txt b/basis/simple-tokenizer/summary.txt
new file mode 100644 (file)
index 0000000..d9d2171
--- /dev/null
+++ b/basis/simple-tokenizer/summary.txt
@@ -0,0 +1 @@
+Simple string tokenizer

diff --git a/core/hash-sets/summary.txt b/core/hash-sets/summary.txt
new file mode 100644 (file)
index 0000000..ed38194
--- /dev/null
+++ b/core/hash-sets/summary.txt
@@ -0,0 +1 @@
+Set structure with constant-time addition and removal