chore: make some documents clearer (#276)

Author: goldlinker

DEVELOPMENT.md

@@ -54,7 +54,7 @@ Rerun the app to apply the migrations.
 
 _Note: For safety, development builds use a separate database location from production builds._
 
-## Lezer Grammer Generation
+## Lezer Grammar Generation
 
 ```sh
 # Example

plugins/template-function-hash/src/index.ts

@@ -8,7 +8,7 @@ type TemplateFunctionPlugin = NonNullable<PluginDefinition['templateFunctions']>
 
 const hashFunctions: TemplateFunctionPlugin[] = algorithms.map(algorithm => ({
   name: `hash.${algorithm}`,
-  description: 'Hash a value to its hexidecimal representation',
+  description: 'Hash a value to its hexadecimal representation',
   args: [
     {
       type: 'text',