fix typo in method name

Author: justinkchen

package.json

@@ -1,6 +1,6 @@
 {
     "name": "set.js",
-    "version": "0.4.9",
+    "version": "0.4.10",
     "description": "A javascript library for interacting with the Set Protocol v2",
     "keywords": [
         "set.js",

src/api/PerpV2LeverageAPI.ts

@@ -86,7 +86,7 @@ export default class PerpV2LeverageAPI {
    * @param  callerAddress            The address of user transferring from (optional)
    * @return                          The decimals of the ERC20 collateral token
    */
-  public async getcollateralDecimalsAsync(
+  public async getCollateralDecimalsAsync(
     callerAddress: Address = undefined,
   ): Promise<Number> {
     return await this.perpV2LeverageModuleWrapper.collateralDecimals(callerAddress);

test/api/PerpV2LeverageAPI.spec.ts

@@ -100,15 +100,15 @@ describe('PerpV2LeverageAPI', () => {
     });
   });
 
-  describe('#getcollateralDecimalsAsync', () => {
+  describe('#getCollateralDecimalsAsync', () => {
     let nullCallerAddress: Address;
 
     beforeEach(async () => {
       nullCallerAddress = '0x0000000000000000000000000000000000000000';
     });
 
     async function subject(): Promise<Number> {
-      return await perpV2LeverageAPI.getcollateralDecimalsAsync(
+      return await perpV2LeverageAPI.getCollateralDecimalsAsync(
         nullCallerAddress,
       );
     }