diff --git a/searching/README.md b/searching/README.md
index 8b013d6a..06904348 100644
--- a/searching/README.md
+++ b/searching/README.md
@@ -1 +1,12 @@
-# Index
+# Searching algorithms
+
+### c-or-cpp
+
+1. linear-search.cpp
+2. binary-search.cpp
+
+### python
+
+1. linear-search.py
+2. binary-search.py
+
diff --git a/sorting/README.md b/sorting/README.md
index 8b013d6a..5e551351 100644
--- a/sorting/README.md
+++ b/sorting/README.md
@@ -1 +1,11 @@
-# Index
+# Sorting algorithms
+
+### c-or-cpp
+
+1. bubble-sort.cpp
+
+### python
+
+1. bubble-sort.py
+
+
diff --git a/strings/README.md b/strings/README.md
index 8b013d6a..d9a742fa 100644
--- a/strings/README.md
+++ b/strings/README.md
@@ -1 +1,5 @@
-# Index
+# String operations
+
+### c-or-cpp
+
+1. palindrome check (palindrome.c)