Add a few missing words

README.md

@@ -14,7 +14,7 @@ The goal is for this book to become the best learning resource possible.
 The [original Little Book of Rust Macros](https://github.com/DanielKeep/tlborm) has helped me immensely with understanding ***Macros by Example*** style macros while I was still learning the language.
 Unfortunately, the original book hasn't been updated since April of 2016, while the Rust language as well as its macro-system keeps evolving.
 Which is why I took up the task to update the book and keep it updated as well as I can while also adding newfound things to it.
-In hopes that it will help out all the fresh faces coming to Rust understanding its macro systems, a part of the language a people tend to have trouble with.
+In hopes that it will help out all the fresh faces coming to Rust understanding its macro systems, a part of the language a lot of people tend to have trouble with.
 
 > This book expects you to have basic knowledge of Rust, it will not explain language features or constructs that are irrelevant to macros.
 > No prior knowledge of macros is assumed.

src/syntax-extensions/source-analysis.md

@@ -81,7 +81,7 @@ trees; more specifically, they are *leaves*. There is one other kind of thing th
 tree leaf, but we will come back to that later.
 
 The only basic tokens that are *not* leaves are the "grouping" tokens: `(...)`, `[...]`, and `{...}`.
-These three are the *interior nodes* of token trees, and what give them their structure. To give a
+These three are the *interior nodes* of token trees, and what gives them their structure. To give a
 concrete example, this sequence of tokens:
 
 ```text