add install instruction

yymao · yymao · commit 6502c5b51ce5 · 2017-08-23T11:03:18.000-04:00
diff --git a/README.md b/README.md
@@ -1,6 +1,10 @@
 # easyquery
 Create easy-to-use Query objects that can apply on NumPy structured arrays, astropy Table, and Pandas DataFrame
 
+To install, run
+
+    pip install easyquery
+
 
 A Query object has three major methods: filter, count, and mask.
 All of them operate on NumPy structured array and astropy Table:
