fixed minor typo (#30)

Author: sampreets3

blog/2022-10-09-welcome.md

@@ -55,7 +55,7 @@ My personal version of it is:
 
 In both cases, we know that the answer is (or might be) **"yes"**, but hopefully you see what I mean.
 
-Very often, open source is about "scratching your own hitch" and sharing what you did with others. That is fine!
+Very often, open source is about "scratching your own itch" and sharing what you did with others. That is fine!
 
 But in my case, This project was created **specifically to help others**; the more it is adopted and used, the more
 I feel that my initial goal has been achieved.
@@ -77,4 +77,4 @@ The documentation of **BT.CPP** is not perfect, but probably a little above the
 considering the average open source project: this cost a lot of time, but paid off enormously.
 
 If you have any suggestions about how to improve this site, 
-[let me know](https://github.com/BehaviorTree/btcpp_website/issues).
+[let me know](https://github.com/BehaviorTree/btcpp_website/issues).