Fix typos and improve grammar in resources.mdx, validator-node.mdx, and validator-node.md
#10144
| Job | Run time |
|---|---|
| 18s | |
| 18s |
resources.mdx, validator-node.mdx, and validator-node.md
#10144
| Job | Run time |
|---|---|
| 18s | |
| 18s |