Fix several typos

Signed-off-by: Sukey <[email protected]>

docs/rfc/000-rfc-format.md

@@ -1,6 +1,6 @@
 # Summary
 
-This is an RFC to propose RFC format for Leo language.
+This is a RFC to propose RFC format for Leo language.
 
 # Motivation
 
@@ -12,19 +12,19 @@ This section describes proposed solution.
 
 ## Store RFCs inside Leo repository.
 
-At early stages it is for better to see changes with the code eliminating the need to keep track of a different repository. 
+At early stages it is better to see changes with the code eliminating the need to keep track of a different repository. 
 
 ## Use standard PR mechanics for submitting new RFCs
 
-New RFCs should be submitted as a PRs into Leo repository. PRs should be correctly labeled for easier search. Yet they should not have number unless PR is accepted by leo maintainers.
+New RFCs should be submitted as PRs into the Leo repository. PRs should be correctly labeled for easier search. Yet they should not have a number unless the PR is accepted by leo maintainers.
 
 ## Increase approvals count for RFCs
 
 RFCs may propose changes affecting multiple systems or projects. They also introduce new changes to the language design or structure. Because of that they should be watched more carefully by as many involved team members as possible. Increasing number of required approvals should help achieve this goal.
 
 ## Format
 
-For bootstrapping new requests template is made and placed into RFC folder.
+For bootstrapping new requests, a template is made and placed into the RFC folder.
 
 ## Number