Merge pull request #2074 from julianfairfax/patch-1

Correct a small mistake

docs/src/index.rst

@@ -2,7 +2,7 @@
 Source-Code
 ===========
 
-This is a partial documentation of our source code.  We are not aim to document
+This is a partial documentation of our source code.  We are not aiming to document
 every item from the source code, but we will add documentation when requested.